Trade options / configurations for onboard

{
  "networks": [
    {
      "networkId": "bsc_testnet",
      "name": "Binance Smart Chain Network",
      "chainId": 1,
      "nativeAsset": "BNB",
      "availableTokens": [
        {
          "symbol": "USDC"
        }
      ]
    }
  ]
}