Anonymous SupportKit, with email later

gistfile1.js

SupportKit.init({appToken: window.site_config.supportkit_appkey});
    
SupportKit.on('ready', function() {
    if(youHaveTheGuyEmail){
        SupportKit.updateUser({email: props['$email']});
    }
});

//[more stuff happen and the email becomes known....]

SupportKit.updateUser({email: props['$email']});