tx 0xf21f0621385cc7a5bb9692b1eb43483a1a6ac4b8e3e9c9e3324802a58fc1b939Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6321153612,
    "order_id": 414212034,
    "new_price": 6502000000
  }
}