ConversationResponse

{
    "id": 0,
    "user1": {
        "id": 0,
        "username": "string"
    },
    "user2": {
        "id": 0,
        "username": "string"
    },
    "unreadCount": 0,
    "lastMessageAt": "2019-08-24T14:15:22.123Z"
}