UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xFcBVzLz0hU6WXlLJD3dzZwIqbzSl524qQcCBx33bfU=' 
WHERE 
  key_id = '6b1f2400428c74a1786bf0c086aaf503919056e94f3c9152b6a43652f5042e0b' 
  AND (
    token = 'xFcBVzLz0hU6WXlLJD3dzZwIqbzSl524qQcCBx33bfU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )