tx 0x3c2d631fc8e4dbd19b1fa78b03fd9970a6997adfd012869f921484904c40c210Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6457280229,
    "order_id": 388157274,
    "new_price": 6442000000
  }
}