Sample SOAP Message with WSSE Header: <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:echo="http://echo.services.core.carbon.wso2.org">    <soapenv:Header>       <wsse:Security soapenv:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">          <wsu:Timestamp wsu:Id="Timestamp-13" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">             <wsu:Created>2015-05-21T04:17:56.541Z</wsu:Created>             <wsu:Expires>2015-09-21T04:22:56.541Z</wsu:Expires>          </wsu:Timestamp>