Fade In/Out

<?xml version="1.0"?>
<query>
    <userid><<id>></userid> <!-- required-->
    <userkey><<key>></userkey> <!-- required-->
    <action>[Action]</action> <!-- required-->
    <format>
        <fade_in>[FadeInStamp]</fade_in>
        <fade_out>[FadeOutStamp]</fade_out>
    </format>
</query>

{
    "query": {
        "userid": "<<id>>",
        "userkey": "<<key>>",
        "action": "[Action]",
        "format": {
            "fade_in": "[FadeInStamp]",
            "fade_out": "[FadeOutStamp]"
        }
    }
}