UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'D6zTwElZcQSa56BNrlbhiG1VaNxqy8YVSik4Ti8FSNM=' 
WHERE 
  key_id = '3c1dd5e54017aa7491997d25ac444cd4842cd72bfeb9a969bdfd0c53d3129838' 
  AND (
    token = 'D6zTwElZcQSa56BNrlbhiG1VaNxqy8YVSik4Ti8FSNM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )