code: public void getSubscriptions(
    final MFPPushResponseListener<List<String>> listener) {
  
      MFPPushUrlBuilder builder = new MFPPushUrlBuilder(applicationId);
      String path = builder.getSubscriptionsUrl(deviceId, null);
  
      if (path == DEVICE_ID_NULL) {
        listener.onFailure(new MFPPushException("The device is not registered yet. Please register device before calling subscriptions API"));
        return;
      }
  
      MFPPushInvoker invoker = MFPPushInvoker.newInstance(appContext, path, Request.GET, clientSecret);
  
      invoker.setResponseListener(new ResponseListener() {
        @Override
        public void onSuccess(Response response) {
          List<String> tagNames = new ArrayList<String>();
          try {
            JSONArray tags = (JSONArray) (new JSONObject(response.getResponseText()))
            .get(SUBSCRIPTIONS);
            int tagsCnt = tags.length();
            for (int tagsIdx = 0; tagsIdx < tagsCnt; tagsIdx++) {
              tagNames.add(tags.getJSONObject(tagsIdx)
              .getString(TAG_NAME));
            }
            listener.onSuccess(tagNames);
  
          } catch (JSONException e) {
            logger.error("MFPPush: getSubscriptions() - Failure while getting subscriptions.  Failure response is: " + e.getMessage());
            listener.onFailure(new MFPPushException(e));
          }
        }
  
        @Override
        public void onFailure(Response response, Throwable throwable, JSONObject jsonObject) {
          //Error while getSubscriptions.
          logger.error("MFPPush: Error while getSubscriptions");
          listener.onFailure(getException(response,throwable,jsonObject));
        }
      });
      invoker.execute();
    }
docs: Get the list of tags subscribed to
  
  @param listener Mandatory listener class. When the list of tags subscribed to
  are successfully retrieved the {@link MFPPushResponseListener}
  .onSuccess method is called with the list of tagNames
  {@link MFPPushResponseListener}.onFailure method is called
  otherwise