query response

[
    {
        "_id": "5ac8f99f536c829c915ca343",
        "participants": [
            [
                "5acb7305536c82042428abe6",
                "5aae67c9536c8220897d9c22"
            ]
        ],
        "userDataTotal": 4,
        "userData": {
            "data": [
                {
                    "_id": {
                        "$oid": "5acb7305536c82042428abe6"
                    },
                    "name": "Pablo",
                    "email": "pablo@gmail.com",
                    "password": "$2y$10$2LJlZkMcENjdZWcNLSyRoOLC6bX15R.v8l5ar/emF7sEFVRq6fhB6",
                    "mention": "@pablo",
                    "updated_at": {
                        "$date": {
                            "$numberLong": "1523282693000"
                        }
                    },
                    "created_at": {
                        "$date": {
                            "$numberLong": "1523282693000"
                        }
                    }
                },
                {
                    "_id": {
                        "$oid": "5aae6807536c8220897d9c23"
                    },
                    "name": "test",
                    "email": "test@gmail.com",
                    "password": "$2y$10$GijceenTxEHKmtNyS3GlfefHWkT/jlWFkAGsx.CXhiJ5UvhX6gmLK",
                    "updated_at": {
                        "$date": {
                            "$numberLong": "1521379335000"
                        }
                    },
                    "created_at": {
                        "$date": {
                            "$numberLong": "1521379335000"
                        }
                    },
                    "mention": "@test"
                },
                {
                    "_id": {
                        "$oid": "5ac280d2536c82222d10a9a4"
                    },
                    "name": "victor",
                    "email": "test1@gmail.com",
                    "password": "$2y$10$qJfP/LinhZdh0aXkqr175OJRjJxw7mKktiDl/445./epyrs9OHWNm",
                    "mention": "@test1",
                    "updated_at": {
                        "$date": {
                            "$numberLong": "1522696402000"
                        }
                    },
                    "created_at": {
                        "$date": {
                            "$numberLong": "1522696402000"
                        }
                    }
                },
                {
                    "_id": {
                        "$oid": "5aae67c9536c8220897d9c22"
                    },
                    "name": "Victor",
                    "email": "victorm.macari@gmail.com",
                    "password": "$2y$10$W4/H9tT8qtHNNYKrw98uOuC8e6MJHBGDvB4yeCyDwAYnHneJTLwfq",
                    "updated_at": {
                        "$date": {
                            "$numberLong": "1521379273000"
                        }
                    },
                    "created_at": {
                        "$date": {
                            "$numberLong": "1521379273000"
                        }
                    }
                }
            ]
        },
        "title": "Chess",
        "unread": 476,
        "last_message": ":smile:",
        "created_at": "2018-04-07 17:02:23"
    }
]