tx 0xf564f7b39d5b311d85d7a78e6c874b76000732f9c78dd6870d5a6e05f4a2fb4bCopy

payload

{
  "ModifyOrder": {
    "new_size": 3245755,
    "order_id": 74238697,
    "new_price": null
  }
}