The formatting of a nice message for this event hasn't been implemented yet, so 
I'll just put an XML dump of the event here.

<ns:documentTypeUpdated xmlns:ns="http://outerx.org/daisy/1.0";>
  <ns:oldDocumentType>
    <ns:documentType updateCount="3" deprecated="false" 
name="CocoonLiveSiteDocument" lastModifier="108" 
lastModified="2005-11-02T08:57:36.000Z" id="7">
      <ns:labels>
        <ns:label locale="">Cocoon LiveSite Document</ns:label>
      </ns:labels>
      <ns:descriptions/>
      <ns:partTypeUses>
        <ns:partTypeUse required="true" partTypeId="2"/>
      </ns:partTypeUses>
      <ns:fieldTypeUses>
        <ns:fieldTypeUse required="true" fieldTypeId="2"/>
      </ns:fieldTypeUses>
    </ns:documentType>
  </ns:oldDocumentType>
  <ns:newDocumentType>
    <ns:documentType updateCount="4" deprecated="false" 
name="CocoonLiveSiteDocument" lastModifier="108" 
lastModified="2005-11-02T08:57:48.481Z" id="7">
      <ns:labels>
        <ns:label locale="">Cocoon LiveSite Document</ns:label>
      </ns:labels>
      <ns:descriptions/>
      <ns:partTypeUses>
        <ns:partTypeUse required="true" partTypeId="2"/>
      </ns:partTypeUses>
      <ns:fieldTypeUses>
        <ns:fieldTypeUse required="true" fieldTypeId="2"/>
        <ns:fieldTypeUse required="true" fieldTypeId="3"/>
      </ns:fieldTypeUses>
    </ns:documentType>
  </ns:newDocumentType>
</ns:documentTypeUpdated>