code: public FactoryFactory build() {
          return new FactoryFactory(
                  getJceProvider(),
                  getHttpClient(),
                  getKeyCache(),
                  getApiBaseURL(),
                  getApiIdentifier(),
                  getRequestExpireSeconds(),
                  offsetTTL,
                  currentPublicKeyTTL,
                  entityKeyMap
          );
  
      }
docs: Build a factory based on the currently configured information
  
  @return Client Factory Factory