s3CanonicalUserId

The Amazon S3 canonical user ID for the origin access identity, used when giving the origin access identity read permission to an object in Amazon S3. For example: b970b42360b81c8ddbd79d2f5df0069ba9033c8a79655752abe380cd6d63ba8bcf23384d568fcf89fc49700b5e11a0fd .