Update a Specific PM Meeting Item

{
  "PmmiCmCode": null,
  "PmmiCompCode": "001",
  "PmmiDateCompl": null,
  "PmmiDueDate": null,
  "PmmiDueDateRev": null,
  "PmmiEndDate": null,
  "PmmiFfRespContact": null,
  "PmmiFfRespFlag": null,
  "PmmiGroupItemFlag": null,
  "PmmiItemDesc": "Test",
  "PmmiItemId": "002",
  "PmmiItemOrderSeq": 834639021,
  "PmmiItemStatus": "C",
  "PmmiItemStatusName": "Closed",
  "PmmiLastNoteNum": null,
  "PmmiMeetingDate": "2015-08-11T15:00:00Z",
  "PmmiProjCode": "1580",
  "PmmiReminderDate": null,
  "PmmiRespComment": null,
  "PmmiRespContactCode": null,
  "PmmiRespPartnCode": null,
  "PmmiRespPartnType": null,
  "PmmiRespStatus": null,
  "PmmiRespStatusDesc": null,
  "PmmiStartDate": null,
  "PmmiTopic": "this is a test entry",
  "PmmiVUuid": "F33F0EFCD95624B0E05316821FAC81B7",
  "PmmVUuid": null,
  "links": [
    {
      "rel": "self",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/pm-rest-api/rest/1/pmmeetingitem/F33F0EFCD95624B0E05316821FAC81B7",
      "name": "pmmeetingitem",
      "kind": "item"
    },
    {
      "rel": "canonical",
      "href": "http://mobtest.cmiccloudr12.com:80/cmictestrti/pm-rest-api/rest/1/pmmeetingitem/F33F0EFCD95624B0E05316821FAC81B7",
      "name": "pmmeetingitem",
      "kind": "item"
    }
  ]
}