1. Open Azure Portal and open the Azure Blob storage account named storage10277521.
2. Right-click and select Blob properties

3. From the properties window, change the access tier for the blob to Cool.

Note: The cool access tier has lower storage costs and higher access costs compared to hot storage. This tier is intended for data that will remain in the cool tier for at least 30 days.
Reference:
https://dailydotnettips.com/how-to-update-access-tier-in-azure-storage-blob-level/