public function update_item( $request ) {
		// Setting context.
		$request->set_param( 'context', 'edit' );

		$notification = $this->get_notification_object( $request );

		if ( $request['is_new'] === $notification->is_new ) {
			return new WP_Error(
				'bp_rest_user_cannot_update_notification_status',
				__( 'Notification is already with the status you are trying to update into.', 'buddypress' ),
				array(
					'status' => 500,
				)
			);
		}

		$updated = BP_Notifications_Notification::update(
			array( 'is_new' => $request['is_new'] ),
			array( 'id' => $notification->id )
		);

		if ( ! (bool) $updated ) {
			return new WP_Error(
				'bp_rest_user_cannot_update_notification',
				__( 'Cannot update the status of this notification.', 'buddypress' ),
				array(
					'status' => 500,
				)
			);
		}

		// Make sure to update the status of the notification.
		$notification = $this->prepare_item_for_database( $request );

		// Update additional fields.
		$fields_update = $this->update_additional_fields_for_object( $notification, $request );

		if ( is_wp_error( $fields_update ) ) {
			return $fields_update;
		}

		$retval = array(
			$this->prepare_response_for_collection(
				$this->prepare_item_for_response( $notification, $request )
			),
		);

		$response = rest_ensure_response( $retval );

		/**
		 * Fires after a notification is updated via the REST API.
		 *
		 * @since 5.0.0
		 *
		 * @param BP_Notifications_Notification $notification The updated notification.
		 * @param WP_REST_Response            $response    The response data.
		 * @param WP_REST_Request             $request     The request sent to the API.
		 */
		do_action( 'bp_rest_notifications_update_item', $notification, $response, $request );

		return $response;
	}