public async Task <string> DoLoadAsync(string signedPayload)
        {
            var jsonPart          = signedPayload.Split('.')[0];
            var hmacSignaturePart = signedPayload.Split('.')[1];

            var decodedJsonPart          = Base64Helper.Base64ForUrlDecode(jsonPart);
            var decodedHmacSignaturePart = Base64Helper.Base64ForUrlDecode(hmacSignaturePart);

            var html = @"<iframe id=""chatigy-iframe"" scrolling=""no"" src=""https://chatigy.justinchasez.space/chatbox?tenantDomain=genk.vn""></iframe>";

            return(html);
        }