tx 0x4cc875b370b93475c69ae45fefe669399662acf5d0690e3c820a195f2bfec69bCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3907430417,
    "order_id": 388375041,
    "new_price": 6420000000
  }
}