tx 0x81ed00d3036401633efee5f963fff84e52d0c05a5f4d97fa9f138bd0da3a98ccCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3886339997,
    "order_id": 388375041,
    "new_price": 6420000000
  }
}