UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Nc9FbHVU32YNw63IP8anTiZPq7YvXBFcv+C8fTRheDY=' 
WHERE 
  key_id = '941034feb39e86b6a3ce7f64ab620380c949500be9e9f24f234976c9c684c897' 
  AND (
    token = 'Nc9FbHVU32YNw63IP8anTiZPq7YvXBFcv+C8fTRheDY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )