UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '7e4Q+xZWKasF3xrfzkTpI2/LV3RY9a9iuOg6q8imh5Y=' 
WHERE 
  key_id = '347d55b8eea79a58355b73f48efc77493e4bef4801ae418c1a77cd7610e4d093' 
  AND (
    token = '7e4Q+xZWKasF3xrfzkTpI2/LV3RY9a9iuOg6q8imh5Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )