UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '539QAjXF74nqIoqenW5ezR+ohI05mOhlJFX1ZFwgUSY=' 
WHERE 
  key_id = '50171ca21a54a8d6b4c58a0dc6704f5ff371d519c35b4341973400fc9e12ab63' 
  AND (
    token = '539QAjXF74nqIoqenW5ezR+ohI05mOhlJFX1ZFwgUSY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )