<?xml version="1.0" encoding="UTF-8"?>
<user>
<created-at type="datetime">2010-06-02T04:15:49Z</created-at>
<creation-group-left type="integer">1</creation-group-left>
<email>mat_aki@example.com</email>
<updated-at type="datetime">2010-09-07T04:39:07Z</updated-at>
<participations type="array">
<participation>
<admin type="boolean">true</admin>
<created-at type="datetime">2010-06-02T04:15:51Z</created-at>
<id type="integer">286</id>
<name>mat_aki</name>
<updated-at type="datetime">2010-09-07T04:41:17Z</updated-at>
<group>
<created-at type="datetime">2010-06-02T04:15:49Z</created-at>
<name>My room1</name>
<updated-at type="datetime">2010-09-07T04:41:17Z</updated-at>
<to-param>61</to-param>
</group>
</participation>
...
</participations>
</user>