UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dYAlxXalxouWyMFSM5IbDgY3f6CQpkUXoip1plyS2EY=' 
WHERE 
  key_id = '51eac32d6c1e52c683e828a10d1628be7685f9b31eaf12f9f031ec9c5e753949' 
  AND (
    token = 'dYAlxXalxouWyMFSM5IbDgY3f6CQpkUXoip1plyS2EY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )