{
    "id": @integer@,
    "user": {
        "id": @integer@,
        "username": "Roy@doe.com",
        "username_canonical": "roy@doe.com",
        "roles": [
            "ROLE_USER"
        ],
        "enabled": true
    },
    "email": "Roy@doe.com",
    "email_canonical": "roy@doe.com",
    "first_name": "Roy",
    "last_name": "Doe",
    "birthday": "@string@.isDateTime()",
    "gender": "u",
    "groups": []
}