I am migrating content from Drupal 7 to Drupal 8. Migration works fine except the changed date for node get changed to the current time. I want to set the timestamp to the Drupal 7 timestamp. I have tried out the following but it is not working.
$changed_date = $node->getChangedTime();
$node->set($source('parent_field_name'), $paragraph_target);
$node->changed->value = $changed_date;
// print_r($changed_date);die;
$node->save();