{
  "request": {
    "jsonrpc": "2.0",
    "method": "engine_forkchoiceUpdatedV1",
    "params": [
      {
        "headBlockHash": "0x3559e851470f6e7bbed1db474980683e8c315bfce99b2a6ef47c057c04de7858",
        "safeBlockHash": "0x00000051470f6e7bbed1db474980683e8c315bfce99b2a6ef47c057c04abcdef",
        "finalizedBlockHash": "0x3b8fb240d288781d4aac94d3fd16809ee413bc99294a085798a589dae51ddd4a"
      },
      null
    ],
    "id": 67
  },
  "response": {
    "jsonrpc": "2.0",
    "id": 67,
    "error": {
      "code": -38002,
      "message": "Invalid forkchoice state"
    }
  },
  "statusCode": 200
}