<?xml version="1.0" encoding="UTF-8"?>
<sr:Request xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:sr="http://www.dccinterface.co.uk/ServiceUserGateway" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" schemaVersion="5.4">
  <sr:Header>
    <sr:RequestID>90-B3-D5-1F-30-01-00-00:90-B3-D5-1F-30-00-00-02:1000</sr:RequestID>
    <sr:CommandVariant>8</sr:CommandVariant>
    <sr:ServiceReference>8.6</sr:ServiceReference>
    <sr:ServiceReferenceVariant>8.6</sr:ServiceReferenceVariant>
  </sr:Header>
  <sr:Body>
    <sr:ServiceOptIn>
      <sr:DeviceID>00-DB-12-34-56-78-90-A0</sr:DeviceID>
      <sr:DeviceType>ESME</sr:DeviceType>
      <sr:MPxNs>
        <sr:ImportMPxN>1312345678111</sr:ImportMPxN>
        <sr:SecondaryImportMPAN>1312345678222</sr:SecondaryImportMPAN>
        <sr:ExportMPAN>1312345678333</sr:ExportMPAN>
      </sr:MPxNs>
      <sr:OptInDate>2015-02-01</sr:OptInDate>
    </sr:ServiceOptIn>
  </sr:Body>
  <ds:Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
    <!-- NOTE: The digest, signature and serial number values below are placeholders and should not be used for actual authentication purposes. -->
    <ds:SignedInfo>
      <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
      <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256"/>
      <ds:Reference URI="">
        <ds:Transforms>
          <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
        </ds:Transforms>
        <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
        <ds:DigestValue>ZGVmYXVsdA==</ds:DigestValue>
      </ds:Reference>
    </ds:SignedInfo>
    <ds:SignatureValue>ZGVmYXVsdA==</ds:SignatureValue>
    <ds:KeyInfo>
      <ds:X509Data>
        <ds:X509IssuerSerial>
          <ds:X509IssuerName>CN=U1, OU=07</ds:X509IssuerName>
          <ds:X509SerialNumber>1234567890</ds:X509SerialNumber>
        </ds:X509IssuerSerial>
      </ds:X509Data>
    </ds:KeyInfo>
  </ds:Signature>
</sr:Request>
