tx 0x0665d7e41f7771073f004263eefda5ec123ff0311f6ff9a4e0bccbea3283fcbbCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3908649585,
    "order_id": 388375041,
    "new_price": 6413000000
  }
}