[{"_id":"62821344445c30b35b441f11","userId":579,"__v":0,"watchHistory":[{"seenTime":"2022-05-23T08:29:19.781Z","videoId":789456,"uploadTime":"2022-03-29T12:33:35.312Z","description":"Biography of Indira Gandhi","speaker":"andrews","title":"Indira Gandhi","_id":"628b45df775e3973f3a670ec"},{"seenTime":"2022-05-24T08:29:39.867Z","videoId":789455,"uploadTime":"2022-03-31T07:37:39.712Z","description":"What are some healthy food habits to stay healthy","speaker":"morris","title":"Healthy Food Habits","_id":"628b45f3775e3973f3a670"},]}]

db.collection.update({_id:"62821344445c30b35b441f11"},{$push:{watchHistory:{"$each":[],"$sort":{seenTime:-1},}}})