MVVM RxSwift way to send data from main view to detail view controller?

I have a view model that has an element that returns an observable array after calling an API.

I then find that result to a table view to display it. The problem I am having is how to call the detail view controller on the specific cell that is clicked. I bound the results with:

 let queryResults = eventsViewModel.mainTableItems

       queryResults
            .bind(to: collectionView.rx.items) { collectionView, row, item in

                let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: IndexPath(row: row, section: 0)) as! EventCell
                cell.heroID = "heroCellID"
                cell.restaurantNameLabel.text = item.name
                cell.restaurantDetailLabel.text = item.location
                cell.timeLabel.text = item.date
                cell.restaurantImageView.kf.setImage(with: URL(string: item.image))

                return cell
        }
        .addDisposableTo(disposeBag)

I have no way to access the specific element in this observable array that was clicked. It says an Observable array cannot have subscript.

This is the code that says that:

 vc.festival = queryResults.value[indexPath.row]

I am still new to RxSwift and I am struggling to understand this.