tx 0xa89b83cce6a5d4e4da2eb3ce5d0dc2bd86e1831e01daa30de48f75d8cd2a0e8aCopy

payload

{
  "ModifyOrder": {
    "new_size": 1775613,
    "order_id": 550211,
    "new_price": null
  }
}