tx 0x398321c0c31c4e7e4ed2213d4ca2e296066175f13d5a7b2ee6db48266e579489Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3845470812,
    "order_id": 388375041,
    "new_price": 6510000000
  }
}