4 invocations of hook_entity_insert()

comment_save in drupal/modules/comment/comment.module
Accepts a submission of new or changed comment content.
file_save in drupal/includes/file.inc
Saves a file object to the database.
taxonomy_vocabulary_save in drupal/modules/taxonomy/taxonomy.module
Saves a vocabulary.
user_save in drupal/modules/user/user.module
Save changes to a user account or add a new user.