tx 0xc4753b3ea62bd0bf2aec6c330d4bc1db8d142eabd3b1e37a67f9ac1ce68cb66bCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3930871248,
    "order_id": 388375041,
    "new_price": 6321000000
  }
}