diff --git a/subgraphs/chamber/abis/Chamber.json b/subgraphs/chamber/abis/Chamber.json
index 130026e..6231057 100644
--- a/subgraphs/chamber/abis/Chamber.json
+++ b/subgraphs/chamber/abis/Chamber.json
@@ -17,8 +17,7 @@
     "name": "approve",
     "inputs": [
       { "name": "proposalId", "type": "uint256", "internalType": "uint256" },
-      { "name": "tokenId", "type": "uint256", "internalType": "uint256" },
-      { "name": "signature", "type": "bytes", "internalType": "bytes" }
+      { "name": "tokenId", "type": "uint256", "internalType": "uint256" }
     ],
     "outputs": [],
     "stateMutability": "nonpayable"
@@ -73,8 +72,7 @@
     "name": "execute",
     "inputs": [
       { "name": "proposalId", "type": "uint256", "internalType": "uint256" },
-      { "name": "tokenId", "type": "uint256", "internalType": "uint256" },
-      { "name": "signature", "type": "bytes", "internalType": "bytes" }
+      { "name": "tokenId", "type": "uint256", "internalType": "uint256" }
     ],
     "outputs": [],
     "stateMutability": "nonpayable"
diff --git a/subgraphs/chamber/abis/Registry.json b/subgraphs/chamber/abis/Registry.json
index ef6a93b..40821bf 100644
--- a/subgraphs/chamber/abis/Registry.json
+++ b/subgraphs/chamber/abis/Registry.json
@@ -261,5 +261,10 @@
     "type": "error",
     "name": "deployFailed",
     "inputs": []
+  },
+  {
+    "type": "error",
+    "name": "insufficientBalance",
+    "inputs": []
   }
-]
+]
\ No newline at end of file