tx 0x1cd5b33f31bbd5e0b07987b3e580d72a2ea6a4748dd3dd3ab6f8fb7c60bd1b5bCopy

payload

{
  "ModifyOrder": {
    "new_size": 9639331,
    "order_id": 16815616,
    "new_price": null
  }
}