Approves a pending 3D Secure (3DS) payment authorization for a Digital Mastercard.

When a cardholder attempts a 3DS payment, PentrraWallet sends a webhook notification to your server containing the event_id. Your application must pass that event_id to this endpoint to approve the specific payment.

A card may have multiple concurrent 3DS requests. The event_id ensures you approve exactly the right one.

Sandbox: No IP check, no event_id required. Returns a simulated approval instantly.

Live: IP check → verify card ownership → verify card_id + event_id match a pending record → PentrraWallet approves the payment → mark as approved.

If the event_id is not found or has already been processed, the endpoint returns 404 and no network call is made.