tx 0xd87fc9361b967f0bf0853732ff12f2a8712d8fd585f5a8f1ceaf7930babe2132Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6549379819,
    "order_id": 388157274,
    "new_price": 6319000000
  }
}