tx 0xd7ef509e0bd1c6e87b3aa733300ed4a66f35f98a1b2f5fc5d6813b4c2c730e18Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3886339997,
    "order_id": 388375041,
    "new_price": 6420000000
  }
}