Expiration date check Mongodb | javascript

I want to check the expiration date of purchased product and if the date is expired then I want to remove it.

The way I’m saving it to DB:

  let currentDate = new Date();
  let currentDateMiliseconds = currentDate.getTime();

  let courseExpiresMiliseconds =
    currentDateMiliseconds + 90 * 24 * 60 * 60 * 1000;  // 90 Days validity
  let courseExpires = new Date(courseExpiresMiliseconds);

  let userPurchasedCourses = new usersPurchasedCourses({
    username: `${value_a}`,
    coursesList: JSON.parse(value_c.replaceAll(".", '"')),
    expirationDate: `courseExpires,
    tran_date: tran_date,
    status: "VALID"
  });
  await userPurchasedCourses.save();

I’m getting the data:

let userCourses = await usersPurchasedCourses.find({
    $and: [{ username: req.body.username }, { status: "VALID" }],
   });

Here I want to have the list of only valid data. No expired ones. How may I do that?