INDENTURE among DI ISSUER LLC and LMRK DI CAN-RO HOLDINGS LTD., LMRK DI PROPCO LLC, LMRK DI PROPCO CAN-BO LLC, as Obligors, and WILMINGTON TRUST, NATIONAL ASSOCIATION, as Indenture Trustee dated as of October 13, 2021 Secured Data Center Revenue Notes