Template:Json EventNotificationIds Block - Java

   private Map<String,Object> BuildMessage() throws Exception
   {
       List<String> eventNotificationIds = new ArrayList<>();
       eventNotificationIds.add("1");
       eventNotificationIds.add("2");
       eventNotificationIds.add("3");

       Map<String,Object> messageData = new HashMap();
       messageData.put("eventNotificationIds", eventNotificationIds);
 
       Map<String,String> authData = new HashMap();
       authData.put("applicationId", "vendorId");
       authData.put("applicationPassword", "vendorPassword");
       messageData.put("auth", authData);

       return messageData;
   }