tx 0x2fcde193c39f2f86de159750769ba0a64bb462c4aa357e77f7cbb6f29b5eb976Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6434561156,
    "order_id": 388157274,
    "new_price": 6450000000
  }
}