tx 0x5a8400a7d04be8f2c85ffd3f613e673e1e3aeeaa2bfac0a7ff17dbfbe8fe62d9Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6424915671,
    "order_id": 388157274,
    "new_price": 6488000000
  }
}