{
  "request": "{block(number :\"0x8\") {number call (data : {from : \"0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b\", to: \"0x6295ee1b4f6dd65047762f924ecd367c17eabf8f\", data :\"12a7b914\"}){data status}}}",
  "response": {
    "errors": [
      {
        "message": "Validation error (WrongType@[block/call]) : argument 'data.data' with value 'StringValue{value='12a7b914'}' is not a valid 'Bytes' - Bytes value '12a7b914' is not prefixed with 0x",
        "locations": [
          {
            "line": 1,
            "column": 37
          }
        ],
        "extensions": {
          "classification": "ValidationError"
        }
      }
    ]
  },
  "statusCode": 400
}