tx 0x78be6e65d66627c7c5f35c80243592f385f4c6735a8a6d767f86a034908ed80dCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3917817644,
    "order_id": 388375041,
    "new_price": 6406000000
  }
}