private async Task <string> GetAccessTokenHeader()
        {
            var header = "<s:Header>" +
                         "<credentials xmlns=\"{0}\">" +
                         "<deviceId>{1}</deviceId>" +
                         "<loginToken>" +
                         "<token>{2}</token>" +
                         "<key>{3}</key>" +
                         "<householdId>{4}</householdId>" +
                         "</loginToken>" +
                         "</credentials>" +
                         "</s:Header>";

            var householdId = await _zoneService.GetHouseholdId();

            var authToken = _sonosMusicApi.GetDeviceAuthToken(MusicServiceContainer.Title);

            if (authToken == null)
            {
                return("");
            }
            header = string.Format(header, ServiceType, _deviceId, authToken.Token, authToken.Key, householdId);
            return(header);
        }