For that you need to define the url link that leads to your profile and pass that into the profile parameter
ex: ‘profile’=>’https://www.mysite.com/user/myUsername’
Step 1: you create an array of your user such as:
$json = json_encode(array('username'=>'myUsername', 'profile'=>'http://www.mysite.com/user/myUsername', 'password'=>'myPassword', 'gender'=>'male', 'role'=>'user', 'avatar'=>'https://html5-chat.com/img/malecostume.svg'));
Step 2 : you encode it using the html5 JWT online service
$encoded = file_get_contents("https://html5-chat.com/protect/".base64_encode($json));
Step 3 : you inject that encoded string into your JS script
<script src="https://html5-chat.com/script/xxxxx/<?=$encoded?>"></script>
where xxxxx is your webmasterid parameter.
And that’s ALL !