<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <AuthenticationSoapHeader xmlns="http://example.com/WS">
      <WSUserName>WSusername</WSUserName>
      <WSPassword>WSpassword</WSPassword>
    </AuthenticationSoapHeader>
  </soap:Header>
  <soap:Body>
    <Ping xmlns="http://example.com/WS">
      <OTA_PingRQ>
        <EchoData>Ping data</EchoData>
      </OTA_PingRQ>
    </Ping>
  </soap:Body>
</soap:Envelope>