{
  "request": {
    "id": 489,
    "jsonrpc": "2.0",
    "method": "eth_getTransactionCount",
    "params": []
  },
  "response": {
    "jsonrpc": "2.0",
    "id": 489,
    "error": {
      "code": -32602,
      "message": "Invalid params"
    }
  },
  "statusCode": 400
}