geoJSONNearQuery.js

db.sensormessageevents.find({
    $and: [
        {
            geoJSON: {
                $exists: true
            }
        },
        {
            geoJSON:
                {
                    $near:
                        {
                            $geometry: { type: "Point", coordinates: [-0.3242414, 51.5844733] },
                            $maxDistance: 5000
                        }
                }
        }
    ]
})
    .projection({})
    .sort({ _id: -1 })
    .limit(100)