tx 0x7f12eed50e9b7f732ca7701f6f5b1d8a2fd014bf9a5c1a85053f8e2813436e3eCopy

payload

{
  "ModifyOrder": {
    "new_size": 311651875,
    "order_id": 9448587,
    "new_price": null
  }
}