tx 0x18196d2ecd4dbfeeabf0fee2c8baf4d1ff73d0fa4d05bd6e232e6be64df0a121Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6191923538,
    "order_id": 377687843,
    "new_price": 6781000000
  }
}