code: @Override
      public UserProperty reconfigure(StaplerRequest req, @CheckForNull JSONObject form) throws FormException {
          if(form == null){
              return this;
          }
  
          Object tokenStoreData = form.get("tokenStore");
          Map<String, JSONObject> tokenStoreTypedData = convertToTokenMap(tokenStoreData);
          this.tokenStore.reconfigure(tokenStoreTypedData);
          return this;
      }
docs: Allow user to rename tokens