Find after aggregate in MongoDB

{
    "_id" : ObjectId("5852725660632d916c8b9a38"),
    "response_log" : [ 
    {
        "campaignId" : "AA",
        "created_at" : ISODate("2016-12-20T11:53:55.727Z")
    }, 
    {
        "campaignId" : "AB",
        "created_at" : ISODate("2016-12-20T11:55:55.727Z")

    }]
}

I have a document which contains an array. I want to select all those documents that do not have response_log.created_at in last 2 hours from current time and count of response_log.created_at in last 24 is less than 3.

I am unable to figure out how to go about it. Please help

via Pulkit Aggarwal