diff --git a/frontend/src/contractsABI/ChainvoiceABI.js b/frontend/src/contractsABI/ChainvoiceABI.js
index 2639dae6..82203610 100644
--- a/frontend/src/contractsABI/ChainvoiceABI.js
+++ b/frontend/src/contractsABI/ChainvoiceABI.js
@@ -1,589 +1,1071 @@
 export const ChainvoiceABI = [
   {
-    type: "constructor",
-    inputs: [],
-    stateMutability: "nonpayable",
+    "type": "constructor",
+    "inputs": [],
+    "stateMutability": "nonpayable"
   },
   {
-    type: "function",
-    name: "accumulatedFees",
-    inputs: [],
-    outputs: [
+    "type": "function",
+    "name": "MAX_BATCH",
+    "inputs": [],
+    "outputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "acceptOwnership",
+    "inputs": [],
+    "outputs": [],
+    "stateMutability": "nonpayable"
   },
   {
-    type: "function",
-    name: "cancelInvoice",
-    inputs: [
+    "type": "function",
+    "name": "accumulatedFees",
+    "inputs": [],
+    "outputs": [
       {
-        name: "invoiceId",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    outputs: [],
-    stateMutability: "nonpayable",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "createInvoice",
-    inputs: [
+    "type": "function",
+    "name": "cancelInvoice",
+    "inputs": [
       {
-        name: "to",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "invoiceId",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
+    ],
+    "outputs": [],
+    "stateMutability": "nonpayable"
+  },
+  {
+    "type": "function",
+    "name": "cancelOwnershipTransfer",
+    "inputs": [],
+    "outputs": [],
+    "stateMutability": "nonpayable"
+  },
+  {
+    "type": "function",
+    "name": "createInvoice",
+    "inputs": [
       {
-        name: "amountDue",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "to",
+        "type": "address",
+        "internalType": "address"
       },
       {
-        name: "tokenAddress",
-        type: "address",
-        internalType: "address",
+        "name": "amountDue",
+        "type": "uint256",
+        "internalType": "uint256"
       },
       {
-        name: "encryptedInvoiceData",
-        type: "string",
-        internalType: "string",
+        "name": "tokenAddress",
+        "type": "address",
+        "internalType": "address"
       },
       {
-        name: "encryptedHash",
-        type: "string",
-        internalType: "string",
+        "name": "encryptedInvoiceData",
+        "type": "string",
+        "internalType": "string"
       },
+      {
+        "name": "encryptedHash",
+        "type": "string",
+        "internalType": "string"
+      }
     ],
-    outputs: [],
-    stateMutability: "nonpayable",
+    "outputs": [],
+    "stateMutability": "nonpayable"
   },
   {
-    type: "function",
-    name: "fee",
-    inputs: [],
-    outputs: [
+    "type": "function",
+    "name": "createInvoicesBatch",
+    "inputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "tos",
+        "type": "address[]",
+        "internalType": "address[]"
       },
+      {
+        "name": "amountsDue",
+        "type": "uint256[]",
+        "internalType": "uint256[]"
+      },
+      {
+        "name": "tokenAddress",
+        "type": "address",
+        "internalType": "address"
+      },
+      {
+        "name": "encryptedPayloads",
+        "type": "string[]",
+        "internalType": "string[]"
+      },
+      {
+        "name": "encryptedHashes",
+        "type": "string[]",
+        "internalType": "string[]"
+      }
     ],
-    stateMutability: "view",
+    "outputs": [],
+    "stateMutability": "nonpayable"
   },
   {
-    type: "function",
-    name: "getInvoice",
-    inputs: [
+    "type": "function",
+    "name": "fee",
+    "inputs": [],
+    "outputs": [
       {
-        name: "invoiceId",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
+    ],
+    "stateMutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "getInvoice",
+    "inputs": [
+      {
+        "name": "invoiceId",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    outputs: [
+    "outputs": [
       {
-        name: "",
-        type: "tuple",
-        internalType: "struct Chainvoice.InvoiceDetails",
-        components: [
+        "name": "",
+        "type": "tuple",
+        "internalType": "struct Chainvoice.InvoiceDetails",
+        "components": [
           {
-            name: "id",
-            type: "uint256",
-            internalType: "uint256",
+            "name": "id",
+            "type": "uint256",
+            "internalType": "uint256"
           },
           {
-            name: "from",
-            type: "address",
-            internalType: "address",
+            "name": "from",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "to",
-            type: "address",
-            internalType: "address",
+            "name": "to",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "amountDue",
-            type: "uint256",
-            internalType: "uint256",
+            "name": "amountDue",
+            "type": "uint256",
+            "internalType": "uint256"
           },
           {
-            name: "tokenAddress",
-            type: "address",
-            internalType: "address",
+            "name": "tokenAddress",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "isPaid",
-            type: "bool",
-            internalType: "bool",
+            "name": "isPaid",
+            "type": "bool",
+            "internalType": "bool"
           },
           {
-            name: "isCancelled",
-            type: "bool",
-            internalType: "bool",
+            "name": "isCancelled",
+            "type": "bool",
+            "internalType": "bool"
           },
           {
-            name: "encryptedInvoiceData",
-            type: "string",
-            internalType: "string",
+            "name": "encryptedInvoiceData",
+            "type": "string",
+            "internalType": "string"
           },
           {
-            name: "encryptedHash",
-            type: "string",
-            internalType: "string",
-          },
-        ],
-      },
+            "name": "encryptedHash",
+            "type": "string",
+            "internalType": "string"
+          }
+        ]
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "getPaymentStatus",
-    inputs: [
+    "type": "function",
+    "name": "getPaymentStatus",
+    "inputs": [
       {
-        name: "invoiceId",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "invoiceId",
+        "type": "uint256",
+        "internalType": "uint256"
       },
       {
-        name: "payer",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "payer",
+        "type": "address",
+        "internalType": "address"
+      }
     ],
-    outputs: [
+    "outputs": [
       {
-        name: "canPay",
-        type: "bool",
-        internalType: "bool",
+        "name": "canPay",
+        "type": "bool",
+        "internalType": "bool"
       },
       {
-        name: "payerBalance",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "payerBalance",
+        "type": "uint256",
+        "internalType": "uint256"
       },
       {
-        name: "allowanceAmount",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "allowanceAmount",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "getReceivedInvoices",
-    inputs: [
+    "type": "function",
+    "name": "getReceivedInvoices",
+    "inputs": [
       {
-        name: "user",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "user",
+        "type": "address",
+        "internalType": "address"
+      }
     ],
-    outputs: [
+    "outputs": [
       {
-        name: "",
-        type: "tuple[]",
-        internalType: "struct Chainvoice.InvoiceDetails[]",
-        components: [
+        "name": "",
+        "type": "tuple[]",
+        "internalType": "struct Chainvoice.InvoiceDetails[]",
+        "components": [
           {
-            name: "id",
-            type: "uint256",
-            internalType: "uint256",
+            "name": "id",
+            "type": "uint256",
+            "internalType": "uint256"
           },
           {
-            name: "from",
-            type: "address",
-            internalType: "address",
+            "name": "from",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "to",
-            type: "address",
-            internalType: "address",
+            "name": "to",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "amountDue",
-            type: "uint256",
-            internalType: "uint256",
+            "name": "amountDue",
+            "type": "uint256",
+            "internalType": "uint256"
           },
           {
-            name: "tokenAddress",
-            type: "address",
-            internalType: "address",
+            "name": "tokenAddress",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "isPaid",
-            type: "bool",
-            internalType: "bool",
+            "name": "isPaid",
+            "type": "bool",
+            "internalType": "bool"
           },
           {
-            name: "isCancelled",
-            type: "bool",
-            internalType: "bool",
+            "name": "isCancelled",
+            "type": "bool",
+            "internalType": "bool"
           },
           {
-            name: "encryptedInvoiceData",
-            type: "string",
-            internalType: "string",
+            "name": "encryptedInvoiceData",
+            "type": "string",
+            "internalType": "string"
           },
           {
-            name: "encryptedHash",
-            type: "string",
-            internalType: "string",
-          },
-        ],
-      },
+            "name": "encryptedHash",
+            "type": "string",
+            "internalType": "string"
+          }
+        ]
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "getSentInvoices",
-    inputs: [
+    "type": "function",
+    "name": "getSentInvoices",
+    "inputs": [
       {
-        name: "user",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "user",
+        "type": "address",
+        "internalType": "address"
+      }
     ],
-    outputs: [
+    "outputs": [
       {
-        name: "",
-        type: "tuple[]",
-        internalType: "struct Chainvoice.InvoiceDetails[]",
-        components: [
+        "name": "",
+        "type": "tuple[]",
+        "internalType": "struct Chainvoice.InvoiceDetails[]",
+        "components": [
           {
-            name: "id",
-            type: "uint256",
-            internalType: "uint256",
+            "name": "id",
+            "type": "uint256",
+            "internalType": "uint256"
           },
           {
-            name: "from",
-            type: "address",
-            internalType: "address",
+            "name": "from",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "to",
-            type: "address",
-            internalType: "address",
+            "name": "to",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "amountDue",
-            type: "uint256",
-            internalType: "uint256",
+            "name": "amountDue",
+            "type": "uint256",
+            "internalType": "uint256"
           },
           {
-            name: "tokenAddress",
-            type: "address",
-            internalType: "address",
+            "name": "tokenAddress",
+            "type": "address",
+            "internalType": "address"
           },
           {
-            name: "isPaid",
-            type: "bool",
-            internalType: "bool",
+            "name": "isPaid",
+            "type": "bool",
+            "internalType": "bool"
           },
           {
-            name: "isCancelled",
-            type: "bool",
-            internalType: "bool",
+            "name": "isCancelled",
+            "type": "bool",
+            "internalType": "bool"
           },
           {
-            name: "encryptedInvoiceData",
-            type: "string",
-            internalType: "string",
+            "name": "encryptedInvoiceData",
+            "type": "string",
+            "internalType": "string"
           },
           {
-            name: "encryptedHash",
-            type: "string",
-            internalType: "string",
-          },
-        ],
-      },
+            "name": "encryptedHash",
+            "type": "string",
+            "internalType": "string"
+          }
+        ]
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "invoices",
-    inputs: [
+    "type": "function",
+    "name": "getWakuPublicKey",
+    "inputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "user",
+        "type": "address",
+        "internalType": "address"
+      }
     ],
-    outputs: [
+    "outputs": [
       {
-        name: "id",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "",
+        "type": "bytes",
+        "internalType": "bytes"
+      }
+    ],
+    "stateMutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "initiateOwnershipTransfer",
+    "inputs": [
       {
-        name: "from",
-        type: "address",
-        internalType: "address",
+        "name": "newOwner",
+        "type": "address",
+        "internalType": "address"
+      }
+    ],
+    "outputs": [],
+    "stateMutability": "nonpayable"
+  },
+  {
+    "type": "function",
+    "name": "invoices",
+    "inputs": [
+      {
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
+    ],
+    "outputs": [
+      {
+        "name": "id",
+        "type": "uint256",
+        "internalType": "uint256"
       },
       {
-        name: "to",
-        type: "address",
-        internalType: "address",
+        "name": "from",
+        "type": "address",
+        "internalType": "address"
       },
       {
-        name: "amountDue",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "to",
+        "type": "address",
+        "internalType": "address"
       },
       {
-        name: "tokenAddress",
-        type: "address",
-        internalType: "address",
+        "name": "amountDue",
+        "type": "uint256",
+        "internalType": "uint256"
       },
       {
-        name: "isPaid",
-        type: "bool",
-        internalType: "bool",
+        "name": "tokenAddress",
+        "type": "address",
+        "internalType": "address"
       },
       {
-        name: "isCancelled",
-        type: "bool",
-        internalType: "bool",
+        "name": "isPaid",
+        "type": "bool",
+        "internalType": "bool"
       },
       {
-        name: "encryptedInvoiceData",
-        type: "string",
-        internalType: "string",
+        "name": "isCancelled",
+        "type": "bool",
+        "internalType": "bool"
       },
       {
-        name: "encryptedHash",
-        type: "string",
-        internalType: "string",
+        "name": "encryptedInvoiceData",
+        "type": "string",
+        "internalType": "string"
       },
+      {
+        "name": "encryptedHash",
+        "type": "string",
+        "internalType": "string"
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "owner",
-    inputs: [],
-    outputs: [
+    "type": "function",
+    "name": "owner",
+    "inputs": [],
+    "outputs": [
       {
-        name: "",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "",
+        "type": "address",
+        "internalType": "address"
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "payInvoice",
-    inputs: [
+    "type": "function",
+    "name": "payInvoice",
+    "inputs": [
       {
-        name: "invoiceId",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "invoiceId",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    outputs: [],
-    stateMutability: "payable",
+    "outputs": [],
+    "stateMutability": "payable"
   },
   {
-    type: "function",
-    name: "receivedInvoices",
-    inputs: [
+    "type": "function",
+    "name": "payInvoicesBatch",
+    "inputs": [
       {
-        name: "",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "invoiceIds",
+        "type": "uint256[]",
+        "internalType": "uint256[]"
+      }
+    ],
+    "outputs": [],
+    "stateMutability": "payable"
+  },
+  {
+    "type": "function",
+    "name": "pendingOwner",
+    "inputs": [],
+    "outputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "",
+        "type": "address",
+        "internalType": "address"
+      }
     ],
-    outputs: [
+    "stateMutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "receivedInvoices",
+    "inputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "",
+        "type": "address",
+        "internalType": "address"
       },
+      {
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    stateMutability: "view",
+    "outputs": [
+      {
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
+    ],
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "sentInvoices",
-    inputs: [
+    "type": "function",
+    "name": "registerWakuPublicKey",
+    "inputs": [
       {
-        name: "",
-        type: "address",
-        internalType: "address",
-      },
+        "name": "publicKey",
+        "type": "bytes",
+        "internalType": "bytes"
+      }
+    ],
+    "outputs": [],
+    "stateMutability": "nonpayable"
+  },
+  {
+    "type": "function",
+    "name": "sentInvoices",
+    "inputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
+        "name": "",
+        "type": "address",
+        "internalType": "address"
       },
+      {
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    outputs: [
+    "outputs": [
       {
-        name: "",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    stateMutability: "view",
+    "stateMutability": "view"
   },
   {
-    type: "function",
-    name: "setFeeAmount",
-    inputs: [
+    "type": "function",
+    "name": "setFeeAmount",
+    "inputs": [
       {
-        name: "_fee",
-        type: "uint256",
-        internalType: "uint256",
-      },
+        "name": "_fee",
+        "type": "uint256",
+        "internalType": "uint256"
+      }
     ],
-    outputs: [],
-    stateMutability: "nonpayable",
+    "outputs": [],
+    "stateMutability": "nonpayable"
   },
   {
-    type: "function",
-    name: "setTreasuryAddress",
-    inputs: [
+    "type": "function",
+    "name": "setTreasuryAddress",
+    "inputs": [
       {
-        name: "newTreasury",
-        type: "address",
-        internalType: "address",
+        "name": "newTreasury",
+        "type": "address",
+        "internalType": "address"
+      }
+    ],
+    "outputs": [],
+    "stateMutability": "nonpayable"
+  },
+  {
+    "type": "function",
+    "name": "treasuryAddress",
+    "inputs": [],
+    "outputs": [
+      {
+        "name": "",
+        "type": "address",
+        "internalType": "address"
+      }
+    ],
+    "stateMutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "wakuPublicKeys",
+    "inputs": [
+      {
+        "name": "",
+        "type": "address",
+        "internalType": "address"
+      }
+    ],
+    "outputs": [
+      {
+        "name": "",
+        "type": "bytes",
+        "internalType": "bytes"
+      }
+    ],
+    "stateMutability": "view"
+  },
+  {
+    "type": "function",
+    "name": "withdrawFees",
+    "inputs": [],
+    "outputs": [],
+    "stateMutability": "nonpayable"
+  },
+  {
+    "type": "event",
+    "name": "FeeUpdated",
+    "inputs": [
+      {
+        "name": "previousFee",
+        "type": "uint256",
+        "indexed": true,
+        "internalType": "uint256"
       },
+      {
+        "name": "newFee",
+        "type": "uint256",
+        "indexed": true,
+        "internalType": "uint256"
+      }
     ],
-    outputs: [],
-    stateMutability: "nonpayable",
+    "anonymous": false
   },
   {
-    type: "function",
-    name: "treasuryAddress",
-    inputs: [],
-    outputs: [
+    "type": "event",
+    "name": "InvoiceBatchCreated",
+    "inputs": [
+      {
+        "name": "creator",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      },
       {
-        name: "",
-        type: "address",
-        internalType: "address",
+        "name": "token",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
+      {
+        "name": "count",
+        "type": "uint256",
+        "indexed": false,
+        "internalType": "uint256"
+      },
+      {
+        "name": "ids",
+        "type": "uint256[]",
+        "indexed": false,
+        "internalType": "uint256[]"
+      }
     ],
-    stateMutability: "view",
+    "anonymous": false
   },
   {
-    type: "function",
-    name: "withdrawFees",
-    inputs: [],
-    outputs: [],
-    stateMutability: "nonpayable",
+    "type": "event",
+    "name": "InvoiceBatchPaid",
+    "inputs": [
+      {
+        "name": "payer",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      },
+      {
+        "name": "token",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      },
+      {
+        "name": "count",
+        "type": "uint256",
+        "indexed": false,
+        "internalType": "uint256"
+      },
+      {
+        "name": "totalAmount",
+        "type": "uint256",
+        "indexed": false,
+        "internalType": "uint256"
+      },
+      {
+        "name": "ids",
+        "type": "uint256[]",
+        "indexed": false,
+        "internalType": "uint256[]"
+      }
+    ],
+    "anonymous": false
   },
   {
-    type: "event",
-    name: "InvoiceCancelled",
-    inputs: [
+    "type": "event",
+    "name": "InvoiceCancelled",
+    "inputs": [
+      {
+        "name": "id",
+        "type": "uint256",
+        "indexed": true,
+        "internalType": "uint256"
+      },
       {
-        name: "id",
-        type: "uint256",
-        indexed: true,
-        internalType: "uint256",
+        "name": "from",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "from",
-        type: "address",
-        indexed: true,
-        internalType: "address",
+        "name": "to",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "to",
-        type: "address",
-        indexed: true,
-        internalType: "address",
+        "name": "tokenAddress",
+        "type": "address",
+        "indexed": false,
+        "internalType": "address"
+      }
+    ],
+    "anonymous": false
+  },
+  {
+    "type": "event",
+    "name": "InvoiceCreated",
+    "inputs": [
+      {
+        "name": "id",
+        "type": "uint256",
+        "indexed": true,
+        "internalType": "uint256"
       },
       {
-        name: "tokenAddress",
-        type: "address",
-        indexed: false,
-        internalType: "address",
+        "name": "from",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
+      {
+        "name": "to",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      },
+      {
+        "name": "tokenAddress",
+        "type": "address",
+        "indexed": false,
+        "internalType": "address"
+      }
     ],
-    anonymous: false,
+    "anonymous": false
   },
   {
-    type: "event",
-    name: "InvoiceCreated",
-    inputs: [
+    "type": "event",
+    "name": "InvoicePaid",
+    "inputs": [
       {
-        name: "id",
-        type: "uint256",
-        indexed: true,
-        internalType: "uint256",
+        "name": "id",
+        "type": "uint256",
+        "indexed": true,
+        "internalType": "uint256"
       },
       {
-        name: "from",
-        type: "address",
-        indexed: true,
-        internalType: "address",
+        "name": "from",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "to",
-        type: "address",
-        indexed: true,
-        internalType: "address",
+        "name": "to",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "tokenAddress",
-        type: "address",
-        indexed: false,
-        internalType: "address",
+        "name": "amount",
+        "type": "uint256",
+        "indexed": false,
+        "internalType": "uint256"
       },
+      {
+        "name": "tokenAddress",
+        "type": "address",
+        "indexed": false,
+        "internalType": "address"
+      }
     ],
-    anonymous: false,
+    "anonymous": false
   },
   {
-    type: "event",
-    name: "InvoicePaid",
-    inputs: [
+    "type": "event",
+    "name": "OwnershipTransferCancelled",
+    "inputs": [
       {
-        name: "id",
-        type: "uint256",
-        indexed: true,
-        internalType: "uint256",
+        "name": "owner",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "from",
-        type: "address",
-        indexed: true,
-        internalType: "address",
+        "name": "cancelledPendingOwner",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      }
+    ],
+    "anonymous": false
+  },
+  {
+    "type": "event",
+    "name": "OwnershipTransferInitiated",
+    "inputs": [
+      {
+        "name": "currentOwner",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "to",
-        type: "address",
-        indexed: true,
-        internalType: "address",
+        "name": "pendingOwner",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      }
+    ],
+    "anonymous": false
+  },
+  {
+    "type": "event",
+    "name": "OwnershipTransferred",
+    "inputs": [
+      {
+        "name": "previousOwner",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "amount",
-        type: "uint256",
-        indexed: false,
-        internalType: "uint256",
+        "name": "newOwner",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      }
+    ],
+    "anonymous": false
+  },
+  {
+    "type": "event",
+    "name": "TreasuryAddressUpdated",
+    "inputs": [
+      {
+        "name": "previousTreasury",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
       {
-        name: "tokenAddress",
-        type: "address",
-        indexed: false,
-        internalType: "address",
+        "name": "newTreasury",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
+      }
+    ],
+    "anonymous": false
+  },
+  {
+    "type": "event",
+    "name": "WakuKeyRegistered",
+    "inputs": [
+      {
+        "name": "user",
+        "type": "address",
+        "indexed": true,
+        "internalType": "address"
       },
+      {
+        "name": "publicKey",
+        "type": "bytes",
+        "indexed": false,
+        "internalType": "bytes"
+      }
     ],
-    anonymous: false,
+    "anonymous": false
+  },
+  {
+    "type": "error",
+    "name": "AlreadySettled",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "ArrayLengthMismatch",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "FeeMustBeNative",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "IncorrectNativeValue",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "IncorrectPaymentAmount",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InsufficientAllowance",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvalidAmount",
+    "inputs": []
   },
-];
\ No newline at end of file
+  {
+    "type": "error",
+    "name": "InvalidBatchSize",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvalidInvoiceHash",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvalidInvoiceId",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvalidNewOwner",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvalidToken",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvalidWakuKey",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvoiceAlreadyPaid",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvoiceCancelledError",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "InvoiceNotCancellable",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "MixedTokenBatch",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "NativeTransferFailed",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "NoFeesAvailable",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "NotAuthorizedPayer",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "NotContract",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "NotInvoiceCreator",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "OwnershipNotPending",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "Reentrancy",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "SelfInvoicing",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "TokenTransferFailed",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "TreasuryNotSet",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "Unauthorized",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "WithdrawFailed",
+    "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "ZeroAddress",
+    "inputs": []
+  }
+];