tx 0x9258229349f64d80608b418d9a5bac90e90bc28a72a2871ca691a3c7c4f7a870Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6524596343,
    "order_id": 388157274,
    "new_price": 6415000000
  }
}