UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mu7MFkSgQvfjHWvwxBaz8ZQd9hirqHdBhqGXtlIZLsE=' 
WHERE 
  key_id = 'a3926137cae00c013f409bc6838d90eca34a572b46dc230892fe16c1930ee801' 
  AND (
    token = 'Mu7MFkSgQvfjHWvwxBaz8ZQd9hirqHdBhqGXtlIZLsE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )