[{"_id":123,"login":"john","details":{"a":"abc","verified":true},"locations":[{"location":{"country":"UK","region":"foo","city":"bar"},"createdAt":ISODate("2020-01-22T21:21:41.052Z")}],"profiles":[{"preference":{"a":"foo","b":"bar"},"details":{"a":"foo","b":"bar"},"hash":"hash123","createdAt":ISODate("2020-01-22T21:21:41.052Z")}],"posts":[{"postId":234,"message":"foo bar","createdAt":ISODate("2020-01-22T21:21:41.052Z")},{"postId":345,"message":"bar foo","createdAt":ISODate("2020-01-22T21:21:41.052Z")}]}]

db.collection.find()