tx 0x1210ea9ac70978b33fffbb6287752e90a4cebae0af4f5a11251fdd9f0138701cCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3907430417,
    "order_id": 388375041,
    "new_price": 6416000000
  }
}