Convert func to use async

Hello I have a function to add data to Core Data that has a completion and uses Futures, I wanted to know what is the best way to convert it to use async, because I just started learning how to use async and await. (I am not really sure how to do it)

Here is the function:

    func add(context: NSManagedObjectContext, _ body: @escaping (inout Entity) -> Void) -> AnyPublisher<Entity, Error> {
        Deferred { [context] in
            Future  { promise in
                context.perform {
                    var entity = Entity(context: context)
                    body(&entity)
                    do {
                        try context.save()
                        promise(.success(entity))
                    } catch {
                        promise(.failure(error))
                    }
                }
            }
        }
        .eraseToAnyPublisher()
    }

Thank You