tx 0xa803d39ac5fd32662545029ce00c809b4256bb4e2fd49598fa30d82bc5c34a67Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6549379819,
    "order_id": 388157274,
    "new_price": 6321000000
  }
}