tx 0x5ab6b8d4520e7b96a171ccca68272c7c3dc1e6cbf91ece7127e8d0a0a2b6b1eeCopy

payload

{
  "ModifyOrder": {
    "new_size": 4344800,
    "order_id": 16555326,
    "new_price": null
  }
}