<soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:ecm="http://ecircle.com/developer/ecmapi">
<soapenv:Header/>
<soapenv:Body>
<ecm:userUpdateProfileByMobileNumber>
<mobileNumber>48505606707</mobileNumber>
<!--Zero or more repetitions:-->
<attributes>
<name>user.lastname</name>
<value>Krzakiewicz</value>
</attributes>
</ecm:userUpdateProfileByMobileNumber>
</soapenv:Body>
</soapenv:Envelope>