<?xml version="1.0" encoding="UTF-8"?>

<SOAP-ENV:Envelope
  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns:ns4="http://soapinterop.org/echoheader/"
  xmlns:ns5="http://soapinterop.org/"
  SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">

<SOAP-ENV:Header>

<ns4:echoMeStringRequest
    xsi:type="xsd:string"
    SOAP-ENV:actor="http://schemas.xmlsoap.org/soap/actor/next"
    SOAP-ENV:mustUnderstand="1"
  >hello world</ns4:echoMeStringRequest>

</SOAP-ENV:Header>

<SOAP-ENV:Body>
<ns5:echoVoid/>
</SOAP-ENV:Body>

</SOAP-ENV:Envelope>