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);
}