JSFiddle - React, Tailwind, and code Playground

JavaScript

var data = [
    {
        "user": {
            "last_message": {
                "message": {
                    "created_at": "2011-04-16T16:40:56Z",
                    "updated_at": "2011-04-16T16:40:56Z",
                    "to": null,
                    "id": 10,
                    "user_id": 28,
                    "message": "This is a message"
                }
            },
            "nickname": "thenicky",
            "id": 28,
            "lastname": "white",
            "firstname": "Sean",
            "bio": "A short bio",
            "email": "[email protected]"
        }
    }
];

alert(data[0].user.last_message.message.created_at);