tx 0x00501534acc7cf01ecc8fc9be3729c247ae5e1560b212b7e33cdb0a11570229dCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6391426851,
    "order_id": 388157274,
    "new_price": 6525000000
  }
}