[Strapi v4] - strapi.entityService.findMany - populate user id

Update:
I managed to get an array with the user, but is there any way I can filter only the ID

const fabric = await strapi.entityService.findMany(
          "api::shop-product.shop-product",
          {
            fields: ["id"],
            filters: { status: "used" },
            populate: ["users_permissions_user"],
          }
        );