UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MJ3hdMErIKvqB9SA+ivGTHx5V1iE28PJ7ywhFKrcf9M=' 
WHERE 
  key_id = 'd2fd109a7a4bee7df7bd7e34ace1d8f803e269e0782f0ef96d39491ac83d0eb9' 
  AND (
    token = 'MJ3hdMErIKvqB9SA+ivGTHx5V1iE28PJ7ywhFKrcf9M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034