tx 0x78446e8b7c62cc68fc226a030e95b5778ec3a3291c1d6a4e55484202b6cc7adaCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3851986551,
    "order_id": 388375041,
    "new_price": 6499000000
  }
}