tx 0xe25b68cf4cd40096d080ed497f3c3c6b46a125c92f3f1e6b670d8faf73afb647Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3910480674,
    "order_id": 388375041,
    "new_price": 6419000000
  }
}