JPA foreign key without entity - jpa

Question

I'm trying to create a favorites table between a user and a business, but I don't want to use the entire entity, just the ids, how can this be done in JPA? Something like this:
#Data
#Entity
#Table(name = "favorite", schema = "public" , uniqueConstraints = {
#UniqueConstraint(columnNames = {"user_id", "business_id"})
})
public class Favorite {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(name = "appuser_id")
#NotNull
private UUID appuser_id;
#Column(name = "business_id")
#NotNull
private Long businessId;
}
instead of:
#Data
#Entity
#Table(name = "favorite", schema = "public" , uniqueConstraints = {
#UniqueConstraint(columnNames = {"user_id", "business_id"})
})
public class Favorite {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "appuser_id", referencedColumnName="id")
private AppUser appUser;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "business_id", referencedColumnName="id")
private Business business;
}
Problem is, solution #1 has no foreign key ref of any kind, is there a way to do this? I would really prefer my result objects to only have ids and not the entire user / business entities every time.
I know I can make a dto with ids only and manually set it up / workaround, but I'd like an answer to this problem if one exists.