--- /dev/null
+/**
+ * Implements hook_entity_update().
+ */
+function {{ machine_name }}_entity_update(Drupal\Core\Entity\EntityInterface $entity) {
+ // Update the entity's entry in a fictional table of all entities.
+ db_update('example_entity')
+ ->fields([
+ 'updated' => REQUEST_TIME,
+ ])
+ ->condition('type', $entity->getEntityTypeId())
+ ->condition('id', $entity->id())
+ ->execute();
+}