You can subscribe to agents that the owner has made available to you for subscription.
To subscribe to an agent:
In the global header, click Catalog and navigate to the agent to which you want to subscribe.
Click the More link for the agent and select Subscribe.
To make an agent available for subscription, in the "Agent editor: Recipients tab," the Publish Agent for Subscription option must be selected, and users, and Catalog groups and Application roles that are allowed to subscribe must be identified.