diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index b3cb790e..7e5e2084 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       a3p:
-        image: ghcr.io/agoric/agoric-3-proposals:latest
+        image: ghcr.io/agoric/agoric-3-proposals@sha256:644e09bf041e5588570ff9a49e6129cc468e9c8458417541027e8532cb91083b
         ports:
           - 26657:26657
       postgres:
diff --git a/docker-compose.yml b/docker-compose.yml
index abe34630..ddd67f4f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,7 +16,7 @@ services:
       retries: 5
 
   subquery-node:
-    image: subquerynetwork/subql-node-cosmos:v3.12.0
+    image: subquerynetwork/subql-node-cosmos:v4.2.1
     depends_on:
       'postgres':
         condition: service_healthy
diff --git a/package.json b/package.json
index fb463d05..2811b755 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   "devDependencies": {
     "@cosmjs/stargate": "^0.28.9",
     "@subql/cli": "^5.4.0",
-    "@subql/node-cosmos": "^4.2.1",
+    "@subql/node-cosmos": "4.2.1",
     "@subql/testing": "latest",
     "prettier": "^3.4.2",
     "starknet": "6.11.0",
diff --git a/src/mappings/constants.ts b/src/mappings/constants.ts
index 97b9d91b..1bb115ed 100644
--- a/src/mappings/constants.ts
+++ b/src/mappings/constants.ts
@@ -1,4 +1,4 @@
-import { b64encode } from './utils';
+import {} from './utils';
 
 export const EVENT_TYPES = {
   ACTIVE_PROPOSAL: 'active_proposal',
@@ -43,11 +43,11 @@ export const PACKET_SRC_CHANNEL_KEY = 'packet_src_channel';
 export const PACKET_DST_CHANNEL_KEY = 'packet_dst_channel';
 export const PACKET_SRC_PORT_KEY = 'packet_src_port';
 export const PACKET_DST_PORT_KEY = 'packet_dst_port';
-export const ACTION_KEY = b64encode('action');
-export const IBC_MESSAGE_TRANSFER_VALUE = b64encode('/ibc.applications.transfer.v1.MsgTransfer');
-export const IBC_MESSAGE_RECEIVE_PACKET_VALUE = b64encode('/ibc.core.channel.v1.MsgRecvPacket');
-export const RECEPIENT_KEY = b64encode('recipient');
-export const SENDER_KEY = b64encode('sender');
-export const RECEIVER_KEY = b64encode('receiver');
-export const AMOUNT_KEY = b64encode('amount');
+export const ACTION_KEY = 'action';
+export const IBC_MESSAGE_TRANSFER_VALUE = '/ibc.applications.transfer.v1.MsgTransfer';
+export const IBC_MESSAGE_RECEIVE_PACKET_VALUE = '/ibc.core.channel.v1.MsgRecvPacket';
+export const RECEPIENT_KEY = 'recipient';
+export const SENDER_KEY = 'sender';
+export const RECEIVER_KEY = 'receiver';
+export const AMOUNT_KEY = 'amount';
 export const TRANSFER_PORT_VALUE = 'transfer';
diff --git a/src/mappings/events/vaults.ts b/src/mappings/events/vaults.ts
index 70c241d8..0528aa8d 100644
--- a/src/mappings/events/vaults.ts
+++ b/src/mappings/events/vaults.ts
@@ -34,7 +34,6 @@ export const vaultsEventKit = (block: any, data: any, module: string, path: stri
   }
 
   async function saveWallets(payload: any): Promise<Promise<any>[]> {
-    logger.info(`PAYLOAD: ${JSON.stringify(payload)}`);
     const promises: Promise<void>[] = [];
     const address = path.split('.')[2];
     const wallet = new Wallet(path, BigInt(data.blockHeight), block.block.header.time as any, address);
diff --git a/src/mappings/mappingHandlers.ts b/src/mappings/mappingHandlers.ts
index 460e5e96..17ff2ee7 100644
--- a/src/mappings/mappingHandlers.ts
+++ b/src/mappings/mappingHandlers.ts
@@ -156,9 +156,6 @@ export async function handleBundleInstallMessage(message: CosmosMessage): Promis
 export async function handleStateChangeEvent(cosmosEvent: CosmosEvent): Promise<void> {
   const { event, block } = cosmosEvent as CosmosEvent & { event: tendermint37.Event };
 
-  logger.info(`EVENT ${JSON.stringify(event)}`);
-  logger.info(`EVENT TYPE:${event.type}`);
-
   if (event.type != EVENT_TYPES.STATE_CHANGE) {
     logger.warn('Not valid state_change event.');
     return;
@@ -183,8 +180,7 @@ export async function handleStateChangeEvent(cosmosEvent: CosmosEvent): Promise<
 
   let data = Object();
   try {
-    const decodedValue =
-      valueAttr.key === UNPROVED_VALUE_KEY ? b64decode(b64decode(valueAttr.value)) : b64decode(valueAttr.value);
+    const decodedValue = valueAttr.key === UNPROVED_VALUE_KEY ? b64decode(valueAttr.value) : valueAttr.value;
     data = JSON.parse(decodedValue);
   } catch (e) {
     return;
@@ -195,10 +191,7 @@ export async function handleStateChangeEvent(cosmosEvent: CosmosEvent): Promise<
     return;
   }
 
-  const decodedKey =
-    keyAttr.key === SUBKEY_KEY
-      ? b64decode(b64decode(keyAttr.value)).replaceAll('\u0000', '\x00')
-      : b64decode(keyAttr.value);
+  const decodedKey = keyAttr.key === SUBKEY_KEY ? b64decode(keyAttr.value).replaceAll('\u0000', '\x00') : keyAttr.value;
   const path = extractStoragePath(decodedKey);
   const module = getStateChangeModule(path);
 
diff --git a/yarn.lock b/yarn.lock
index af4f2afb..4c0e2d2d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3305,7 +3305,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@subql/node-cosmos@npm:^4.2.1":
+"@subql/node-cosmos@npm:4.2.1":
   version: 4.2.1
   resolution: "@subql/node-cosmos@npm:4.2.1"
   dependencies:
@@ -4107,7 +4107,7 @@ __metadata:
   dependencies:
     "@cosmjs/stargate": "npm:^0.28.9"
     "@subql/cli": "npm:^5.4.0"
-    "@subql/node-cosmos": "npm:^4.2.1"
+    "@subql/node-cosmos": "npm:4.2.1"
     "@subql/testing": "npm:latest"
     "@subql/types-cosmos": "npm:^4.0.0"
     "@subql/utils": "npm:^2.17.0"