tx 0x80adc9ff06a29f94568b7fcf57a451df76d499ac6ade75ab15c7e7389009d1eaCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6438154920,
    "order_id": 388157274,
    "new_price": 6421000000
  }
}