tx 0x74bb5b9d2b24e5187a51bf11380e4183889d517673030a248c14971778e90384Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3874546482,
    "order_id": 388375041,
    "new_price": 6430000000
  }
}