lazy var availableSubscriptions: Observable<[AvailableSubscription]> = {
        fetchProductInfo()
        return Observable.combineLatest(APIService.shared.getUserSubscriptions().asObservable().map { $0.actualSubscriptions } , productsEntity.asObservable().map { $0.availableSubscriptions })
            .map { AvailableSubscription.combine(subscriptionItems: $0, availableSubscriptions: $1) }
    }()