tx 0x21780b16379dc86f43deeee2bb9aced17f1ed4226ae03c3b2dde47e5ce135c82Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 1597351955,
    "order_id": 388375041,
    "new_price": 6384000000
  }
}