tx 0x81e7a9c5ef26f4e5f2276537c8e9cd9b438d58bd34f2741894ae82a9f6da9b7eCopy

payload

{
  "ModifyOrder": {
    "new_size": 300346238742,
    "order_id": 403502763,
    "new_price": 506000000
  }
}