message: Add wss nodes for layer 1 networks
diff: @@ -5,7 +5,9 @@ import { networkName } from './utils/general-utils';
  const INFURA_PROJECT_ID = 'dfb8cbe2e916420a9dbcc1d1f5828406';
  const KOVAN_INFURA_URL = 'https://kovan.infura.io/v3';
  +const KOVAN_WSS_INFURA_URL = 'wss://kovan.infura.io/v3';
  const MAINNET_INFURA_URL = 'https://mainnet.infura.io/v3';
  +const MAINNET_WSS_INFURA_URL = 'wss://mainnet.infura.io/v3';
  export const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
  @@ -41,6 +43,7 @@ const KOVAN = {
  nativeTokenName: 'Ethereum',
  name: 'Kovan',
  rpcNode: `${KOVAN_INFURA_URL}/${INFURA_PROJECT_ID}`,
  + rpcWssNode: `${KOVAN_WSS_INFURA_URL}/${INFURA_PROJECT_ID}`
  };
  const MAINNET = {
  apiBaseUrl: 'https://api.etherscan.io/api',
  @@ -54,6 +57,7 @@ const MAINNET = {
  nativeTokenName: 'Ethereum',
  name: 'Ethereum Mainnet',
  rpcNode: `${MAINNET_INFURA_URL}/${INFURA_PROJECT_ID}`,
  + rpcWssNode: `${MAINNET_WSS_INFURA_URL}/${INFURA_PROJECT_ID}`,
  };
  const XDAI = {
  apiBaseUrl: 'https://blockscout.com/xdai/mainnet/api',
  