tx 0x8f704d0a0d0639e41073b024eea7db631b8be978a35e8ccd4899d0e38fd22249Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3866502571,
    "order_id": 388375041,
    "new_price": 6421000000
  }
}