POST http://localhost:8080/cmx/cs/localhost-orcl-MDM_SAMPLE/Person/181921?action=unmerge&systemName=Admin
{
"name":"Person.Address",
"key":{
"rowid":"41721 ",
"rowidXref":41722
}
}

<ns9:UnMerge xmlns:ns2="urn:co-base.informatica.mdm" xmlns:ns7="urn:co-meta.informatica.mdm" xmlns:ns3="http://services.dnb.com/LinkageServiceV2.0" xmlns:ns8="urn:task-base.informatica.mdm" xmlns:ns6="urn:co-ors.informatica.mdm" xmlns:ns1="urn:cs-base.informatica.mdm" xmlns:ns9="urn:cs-ors.informatica.mdm" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="ns9:UnMerge">
   <ns9:parameters>
      <ns9:businessEntityKey name="Person">
         <ns1:key>
            <ns1:rowid>181921</ns1:rowid>
        </ns1:key>
      </ns9:businessEntityKey>
      <ns9:unmergeKey name="Person.TelephoneNumbers">
         <ns1:key>
            <ns1:rowid>41721 </ns1:rowid>
            <ns1:rowidXref>41722</ns1:rowidXref>
         </ns1:key>
      </ns9:unmergeKey>
      <ns9:treeUnmerge>true</ns9:treeUnmerge>
   </ns9:parameters>
</ns9:UnMerge>