zammad/app/frontend/shared/entities/ticket/graphql/subscriptions/ticketArticlesUpdates.graphql

subscription ticketArticleUpdates($ticketId: ID!) {
  ticketArticleUpdates(ticketId: $ticketId) {
    addArticle {
      id
      createdAt
    }
    updateArticle {
      ...ticketArticleAttributes
    }
    removeArticleId
  }
}