tx 0x8a120a5aeae7041be910c503b2f2c338c3f63c4f71beaeb287dee4dd367c5e52Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3917817644,
    "order_id": 388375041,
    "new_price": 6409000000
  }
}