tx 0x763aeb45331e0a23135d50955a7e89005e7db459e52e11caae4889ee40019210Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3841926055,
    "order_id": 388375041,
    "new_price": 6515000000
  }
}