Init actor from json

Author: obenland

includes/collection/class-actors.php

@@ -7,6 +7,7 @@
 
 namespace Activitypub\Collection;
 
+use Activitypub\Activity\Actor;
 use WP_Error;
 use WP_User_Query;
 use Activitypub\Model\User;
@@ -350,11 +351,11 @@ public static function get_type_by_id( $user_id ) {
 	 * Returns the actor from cached data.
 	 *
 	 * @param string $cached_data The cached data.
-	 * @return User|Blog|Application The actor.
+	 * @return Cached_Actor|\WP_Error The actor or WP_Error if invalid data.
 	 */
 	public static function actor_from_cached_data( $cached_data ) {
 		// Decode the cached data.
-		$actor_data = \json_decode( $cached_data, true );
+		$actor_data = Actor::init_from_json( $cached_data );
 
 		if ( ! $actor_data || ! is_array( $actor_data ) ) {
 			return new \WP_Error(