tx 0x471899abcaa7e55b62b24de01accd46be7e6c6647a9178d14852ea00598865aaCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3906212921,
    "order_id": 388375041,
    "new_price": 6425000000
  }
}