tx 0x09b00fae8f4ad15a814a4af53b270e53fefe0ac6bed4ce6d1d58a6ee75c1d5cbCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3876775699,
    "order_id": 388375041,
    "new_price": 6440000000
  }
}