[{"_id":ObjectId("6350dee274edf5586dc86098"),"sentTo":[{"username":"user1","status":0},{"username":"user2","status":0},{"username":"user3","status":0},{"username":"user4","status":0}],"status":0,"createdOn":ISODate("2022-10-20T05:38:42.656Z"),"createdBy":"system","content":{"text":"This is content"}},{"_id":ObjectId("6350dee274edf5586dc86099"),"sentTo":[{"username":"user1","status":0},{"username":"user3","status":0}],"status":0,"createdOn":ISODate("2022-10-20T05:38:42.656Z"),"createdBy":"system","content":{"text":"This is another content"}}]

db.collection.update({"sentTo":{"$elemMatch":{"username":"user3","status":{"$lt":2}}}},{"$set":{"sentTo.$.status":1}},{"multi":true})