<env:Envelope xmlns:env="http://www.w3.org/2003/05/soap-envelope">
    <env:Header xmlns:addressing="http://www.w3.org/2005/08/addressing">
        <addressing:Action env:mustUnderstand="1">http://docs.oasis-open.org/wsn/bw-2/SubscriptionManager/UnsubscribeResponse</addressing:Action>
        <addressing:MessageID>uuid:726488FA-BFCF-4151-A63B-F839F490954C</addressing:MessageID>
        <addressing:RelatesTo>pineIT_msgID:83ad24ca-6a1b-43ac-81fd-08c1a1fc96fd</addressing:RelatesTo>
    </env:Header>
    <env:Body>
        <UnsubscribeResponse xmlns="http://docs.oasis-open.org/wsn/b-2" />
    </env:Body>
</env:Envelope>