Add to the object https://elpais.com/arc/subs/p.html , the following attributes reachable: paywallActive, paywallCounter and paywallProduct with the following values:
paywallActive: [true (*)|false] if the paywall is active on the current page. Same value as for web.
true: If the page being displayed complies with the rules (section, tag) for entering the paywall.
paywallCounter: [number of free articles remaining].
paywallProduct: [contracted offer SKU] ("no-suscriptor" if the user is not a subscriber) .