az eventgrid --help Manage Azure Event Grid topics, event subscriptions, domains and domain topics.

[addaxnasom]

Group
    az eventgrid : Manage Azure Event Grid topics, event subscriptions, domains and domain topics.

Subgroups:
    domain             : Manage event domains.
    event-subscription : Manage event subscriptions.
    topic              : Manage Azure Event Grid topics.
    topic-type         : Get details for topic types.