tx 0x81b19b568d95f85beecac52c9ecc55c11809e90414ba7e481fec69aea8eb6e36Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3884524234,
    "order_id": 388375041,
    "new_price": 6423000000
  }
}