Update a specific PM Communication

{
  "PmcomClvValueCode1": null,
  "PmcomClvValueCode2": null,
  "PmcomClvValueCode3": null,
  "PmcomClvValueCode4": null,
  "PmcomClvValueCode5": null,
  "PmcomClvValueCode6": null,
  "PmcomCommDate": null,
  "PmcomCommEndDate": null,
  "PmcomCommId": "00000001",
  "PmcomCommStatus": null,
  "PmcomCommType": "EMAIL",
  "PmcomCompCode": "001",
  "PmcomEnteredByContactCode": "AL",
  "PmcomEnteredByPartnCode": "001",
  "PmcomEnteredByPartnTCode": "C",
  "PmcomEnteredDate": null,
  "PmcomFollowupByContctCode": "AL",
  "PmcomFollowupByPartnCode": "001",
  "PmcomFollowupByPtCode": "C",
  "PmcomFollowupDate": null,
  "PmcomFollowupDueDate": null,
  "PmcomFollowupNotes": null,
  "PmcomFollowupRequiredFlag": "N",
  "PmcomFromContactCode": "DD",
  "PmcomFromPartnCode": "HIKUU",
  "PmcomFromPartnTypeCode": "C",
  "PmcomNotes": null,
  "PmcomProjCode": "14001",
  "PmcomReceivedFlag": "N",
  "PmcomRecordStatus": "SUBMITTED",
  "PmcomSubject": null,
  "PmcomToContactCode": "CH",
  "PmcomToPartnCode": "HIKUU",
  "PmcomToPartnTypeCode": "C",
  "PmcomVUuid": "F381117555984D58E05316821FACB0FD",
  "links": [
    {
      "rel": "self",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/pm-rest-api/rest/1/pmcomm/F381117555984D58E05316821FACB0FD",
      "name": "pmcomm",
      "kind": "item"
    },
    {
      "rel": "canonical",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/pm-rest-api/rest/1/pmcomm/F381117555984D58E05316821FACB0FD",
      "name": "pmcomm",
      "kind": "item"
    },
    {
      "rel": "enclosure",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/pm-rest-api/rest/1/pmcomm/F381117555984D58E05316821FACB0FD/enclosure/PmcomCommentsLong",
      "name": "PmcomCommentsLong",
      "kind": "other"
    }
  ]
}