Update

<iq to="localhost" type="set" id="uuid V1 arbitrary id" xmlns:stream="http://etherx.jabber.org/streams" from="[email protected]/TOKEN">
  <request>
    <metadata>
      <jobType>UpdateDevice</jobType>
      <toUuid>The uuid of the device to update</toUuid>
    </metadata>
    <raw-data>{ "$set": {"type" : "device:generic"} }</raw-data>
  </request>
</iq>

{
  "uuid": "some-new-uuid",
  "token": "some-new-token",
  "type": "device:generic"
}