public function handle($request, Closure $next)
    {
        // Here you may use whatever mechanism you use in your app
        // to determine the current tenant. To demonstrate, the
        // $tenantId is set here from the user's account_id.
        $tenantId = $request->user()->account_id;

        $this->bouncer->scope()->to($tenantId);

        return $next($request);
    }