<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:aut="http://portwise.com/ws/v1/authentication">
   <soapenv:Header/>
   <soapenv:Body>
      <aut:authenticate>
         <!--Optional:-->
         <subject>
            <country>?</country>
            <credentials>
               <key>username</key>
               <value>YTE=</value>
            </credentials>
            <credentials>
               <key>password</key>
               <value>bmV4dXNAMTIz</value>
            </credentials>
<!--            <language>?</language>
-->
<!--            <principals>
-->
<!--               <key>?</key>
-->
<!--               <value>cid:623716386163</value>
-->
<!--            </principals>
-->
         </subject>
         <!--pass methodID-->
         <method>13</method>
      </aut:authenticate>
   </soapenv:Body>
</soapenv:Envelope>