tx 0x21b2d85bd69293b73c13d3baec0510a6675d465fa83de8f8720dcc87f3b8a034Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3931423729,
    "order_id": 388375041,
    "new_price": 6323000000
  }
}