public NotifyContent getNotifyContent(Subscription subscription) {
    try {

      ComposedPublication composedPublication =
          sbb.getPublicationChildSbb()
              .getComposedPublication(
                  subscription.getNotifier(), subscription.getKey().getEventPackage());
      if (composedPublication != null) {
        return new NotifyContent(
            composedPublication.getUnmarshalledContent(),
            sbb.getHeaderFactory()
                .createContentTypeHeader(
                    composedPublication.getContentType(), composedPublication.getContentSubType()));
      }
    } catch (Exception e) {
      logger.error("failed to get notify content", e);
    }
    return null;
  }