tx 0x5fdffd0a4243d89ab3aa5f0321f0c4e84f7e6dd2c56a449196b73b24f6f0b4bfCopy

payload

{
  "ModifyOrder": {
    "new_size": null,
    "order_id": 50899956,
    "new_price": 499000000
  }
}