Database
[{client_id:1,room_data:{"meta":{"xxx_unrecognized":null,"xxx_sizecache":0,"id":"Hke7owir4oejq3bMf","createdat":1565336450838,"updatedat":1565336651548,}}}]
Query
db.collection.aggregate([{$match:{$expr:{$and:[{$eq:["$client_id",1]},{$gt:[{"$subtract":[ISODate("2019-08-19T07:40:50.838Z"),"$room_data.meta.createdat"]},ISODate("1970-01-01T00:00:00.000Z")]},{$lt:[{"$subtract":[ISODate("2019-08-05T07:40:50.838Z"),"$room_data.meta.createdat"]},ISODate("1970-01-01T00:00:00.000Z")]}]}}}])