code: public Map<String, String> toMap() {
  
          HashMap<String,String> map = new HashMap<>();
  
          if( user != null ) {
  
              Map<String,String> userMap = user.toMap();
  
              for(String st : userMap.keySet() ){
                  map.put("user."+st,userMap.get(st));
              }
  
          }
  
          map.put("message",message);
          map.put("token",token);
          map.put("success",String.valueOf(success));
          return map;
      }
docs: Map a Token instance to its Java's Map representation.
  
  @return a Java's Map with the description of this object.