tx 0x9d0c22f3c0fcc37d6ea8bb280d2049af35ff1f6eb11d55d60d3b50fe0eb7e152Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6430150999,
    "order_id": 388157274,
    "new_price": 6455000000
  }
}