UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mlZY3uBmfrq0g58EBrrP+TL9gp7BFk6JBoxqfHSWuJU=' 
WHERE 
  key_id = '83096e16e33fb069cbe6717a82563e99075c5845b69c35e26b0297a3367c193f' 
  AND (
    token = 'mlZY3uBmfrq0g58EBrrP+TL9gp7BFk6JBoxqfHSWuJU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )