Action that will result in unsubscribing a person from a preferred category.

function CRM_Marketing_ParseWebhookRequest(request:  FetchRequest): CRM_Marketing_WebhookResult {
    return { 
        actions:  [ 
            // Unsubscribe the person with email 'user@example.com' from  category '1000'. 
            { 
                type:  CRM_Marketing_ActionType.Unsubscribe, 
                email: 'user@ example.com', 
                externalId: '1000', 
            },  
            // Unsubscribe the person with the email user2@example.com from  all the preferred categories 
            { 
                type:  CRM_Marketing_ActionType.Unsubscribe, 
                email: 'user2@ example.com', 
                externalId: { all: true }, 
            }  
        ]; 
    } 
}