The following sample request unmerges a record from the consolidated record. The request adds a comment and attachment to the workflow task triggered by the API.
POST http://localhost:8080/cmx/cs/localhost-orcl-DS_UI1/Person/2478248?action=unmerge&taskComment=Read my comment&taskAttachments=TEMP_SVR1.29OT8,TEMP_SVR1.29OT9