tx 0x6fbea511f5bf267646c80e0cfffb074df11b97d1c260e13f8876e19488490896Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3856666899,
    "order_id": 388375041,
    "new_price": 6499000000
  }
}