public function execute( Request $request )
    {
        $controllerClass = $request->attributes->get('_controller');
        if( !($this->isJwtRequired($controllerClass))) {
            return null;
        }

        if( !$this->authoriser->isAuthorised( $request ) ) {
            return new JsonResponse( ['error' => 'Invalid token'], 403 );
        }
        return null;
    }