curl -H "X-Auth-Token: 9HqLlyZOugoStsXCUfD_0YdwnNnunAJF8V47U3QHXSq" \
     -H "X-User-Id: aobEdbYhXfu5hkeqG" \
     http://localhost:3000/api/v1/groups.moderators?roomId=ByehQjC44FwMeiLbX

{
    "moderators": [
        {
            "_id": "rocket.cat",
            "username": "rocket.cat",
            "name": Rocket.Cat
        }
    ],
    "success": true
}