tx 0x60fceefbea150003eb4a461043b362ee1d8b72000f905b8d5b3e8ff14e4bc720Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3913437804,
    "order_id": 388375041,
    "new_price": 6357000000
  }
}