tx 0x5ecf1096cce9c260a7ac2a28d6c0a8ce00b76e0c01d426fcdd65e06f5e9c7b8bCopy

payload

{
  "ModifyOrder": {
    "new_size": 512653,
    "order_id": 186397069,
    "new_price": null
  }
}