Add Support Request Comment

{

    "text": "test comment"

}

{

    "validationErrors": [],

    "result": {

        "update": {

            "comment": "test comment",

            "creator": {

                "label": "Philip Fry",

                "actorType": "CUSTOMER"

            },

            "creationDateTime": "2017-11-29T11:23:24.221",

            "requestState": "IN_PROGRESS",

            "type": "COMMENT_ADDED",

            "assignee": "Special AgentOne"

        }

    }

}