tx 0x781471faf97114001e1908fb353fcb5252490a4cd02289a49bfec50489aaa908Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3875571544,
    "order_id": 388375041,
    "new_price": 6440000000
  }
}