# description
The response envelope returned synchronously by the CS (Cataloging Service) for subscription management operations — create, update, list, and deactivate.

This schema appears in the Catalog Subscription phase. The CS produces it as the synchronous response to POST /catalog/subscription (creation or update), GET /catalog/subscription (listing), and DELETE /catalog/subscription (deactivation). The DS consumes it to confirm subscription state.

Fabric context: Produced synchronously by the CS; no async callback is delivered for subscription management operations. The context.action is always catalog/on_subscription.

Relationship: Composes one or more CatalogSubscription records in the message.subscriptions array, and an optional Pagination object for list responses.