tx 0x20d0f8ba995cc3331b81192e1c21843263fa267bf2fb6c338f040e64053cd80fCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3863214720,
    "order_id": 388375041,
    "new_price": 6487000000
  }
}