tx 0x9f1a54c16a58d8a3636d5d1aba4ba5def32cdec0e5affbb3fc2f7590f8bea32fCopy

payload

{
  "ModifyOrder": {
    "new_size": null,
    "order_id": 55817495,
    "new_price": 503000000
  }
}