diff --git a/.nvmrc b/.nvmrc
index e1fcd1e..8351c19 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-lts/erbium
+14
diff --git a/src/app/containers/BlockChainProvider/classifiers.ts b/src/app/containers/BlockChainProvider/classifiers.ts
index d3d24f7..28da434 100644
--- a/src/app/containers/BlockChainProvider/classifiers.ts
+++ b/src/app/containers/BlockChainProvider/classifiers.ts
@@ -6,6 +6,16 @@ export const rpcNodes = {
 };
 
 export const wssNodes = {
+  30: 'wss://mainnet.sovryn.app/webscoket',
+  31: 'wss://testnet.sovryn.app/webscoket',
+};
+
+export const databaseRpcNodes = {
+  30: 'https://backend.sovryn.app/rpc',
+  31: 'https://testnet.sovryn.app/backend/rpc',
+};
+
+export const rpcBackupNodes = {
   30: 'wss://mainnet2.sovryn.app/websocket',
   31: 'wss://testnet.sovryn.app/websocket',
 };
diff --git a/src/app/containers/BlockChainProvider/network.ts b/src/app/containers/BlockChainProvider/network.ts
index 0636086..a8af0f6 100644
--- a/src/app/containers/BlockChainProvider/network.ts
+++ b/src/app/containers/BlockChainProvider/network.ts
@@ -1,3 +1,4 @@
+import { databaseRpcNodes } from './classifiers';
 import Web3 from 'web3';
 import ContractClass, { EventData, Contract } from 'web3-eth-contract';
 import { RevertInstructionError } from 'web3-core-helpers';
@@ -29,9 +30,49 @@ class Network {
   public wsContracts: {} = {};
   public writeContracts: { [key: string]: Contract } = {};
 
+  private _databaseWeb3: Web3 = null as any;
+  public databaseContracts: { [key: string]: Contract } = {};
+  public databaseContractList: Contract[] = [];
+
   private _network: NetworkName = null as any;
   private _writeNetwork: NetworkName = null as any;
 
+  public async initDatabaseWeb3(chainId: number) {
+    try {
+      const nodeUrl = databaseRpcNodes[chainId];
+      const web3Provider = new Web3.providers.HttpProvider(nodeUrl, {
+        keepAlive: true,
+      });
+      this._databaseWeb3 = new Web3(web3Provider);
+
+      const netwrokName = chainId === 30 ? 'mainnet' : 'testnet';
+      Array.from(Object.keys(contracts[netwrokName])).forEach(key => {
+        this.addDatabaseContract(key, contracts[netwrokName][key]);
+      });
+    } catch (e) {
+      console.error('init database web3 fails.');
+      console.error(e);
+    }
+  }
+
+  public addDatabaseContract(
+    contractName: string,
+    contractConfig: {
+      address: string;
+      abi: AbiItem | AbiItem[];
+    },
+  ) {
+    if (!this._databaseWeb3) {
+      return;
+    }
+    console.log('contractConfig: ', contractName, contractConfig);
+    const contract = this.makeContract(this._databaseWeb3, contractConfig);
+    // @ts-ignore
+    this.databaseContracts[contractName] = contract;
+    // @ts-ignore
+    this.databaseContractList.push(contract);
+  }
+
   public setWeb3(web3: Web3, network: NetworkName) {
     this.web3 = web3;
     if (this._network !== network) {
@@ -267,11 +308,7 @@ class Network {
     fromBlock: number = 0,
     toBlock: number | 'latest' = 'latest',
   ): Promise<EventData[]> {
-    if (!this.wsContracts.hasOwnProperty(contractName)) {
-      return Promise.resolve([]);
-    }
-
-    return this.wsContracts[contractName].getPastEvents(eventName, {
+    return this.databaseContracts[contractName].getPastEvents(eventName, {
       fromBlock,
       toBlock,
       filter,
diff --git a/src/app/containers/BlockChainProvider/saga.ts b/src/app/containers/BlockChainProvider/saga.ts
index 1468ca1..d3db421 100644
--- a/src/app/containers/BlockChainProvider/saga.ts
+++ b/src/app/containers/BlockChainProvider/saga.ts
@@ -32,6 +32,7 @@ function* setupSaga({ payload }: PayloadAction<ChainId>) {
   const web3 = new Web3(web3Provider);
   const wsWeb3 = new Web3(web3WsProvider);
 
+  network.initDatabaseWeb3(payload);
   network.setWeb3(web3, payload === 30 ? 'mainnet' : 'testnet');
   network.setWsWeb3(wsWeb3, payload === 30 ? 'mainnet' : 'testnet', true);
 
diff --git a/src/app/hooks/useProposalList.ts b/src/app/hooks/useProposalList.ts
index 9c4becc..f8ff946 100644
--- a/src/app/hooks/useProposalList.ts
+++ b/src/app/hooks/useProposalList.ts
@@ -55,7 +55,7 @@ export function useProposalList(page: number, limit: number = 0) {
 
       setTotal(adminItemsCount + ownerItemsCount);
 
-      const adminItems = await getProposalsOf(
+      const adminPromise = await getProposalsOf(
         'governorAdmin',
         getContract('governorAdmin').address,
         adminItemsCount,
@@ -63,7 +63,7 @@ export function useProposalList(page: number, limit: number = 0) {
         limit,
       );
 
-      const ownerItems = await getProposalsOf(
+      const ownerPromise = await getProposalsOf(
         'governorOwner',
         getContract('governorOwner').address,
         ownerItemsCount,
@@ -71,6 +71,11 @@ export function useProposalList(page: number, limit: number = 0) {
         limit,
       );
 
+      const [adminItems, ownerItems] = await Promise.all([
+        adminPromise,
+        ownerPromise,
+      ]);
+
       const merged = [...adminItems, ...ownerItems]
         .sort((a, b) => b.startBlock - a.startBlock)
         .filter(item => {