post https://api.millicast.com/api/v3/account/media/storage/validate
Validates third party storage is configured with permissions for Dolby.io to upload media assets.
To track the validation result, keep note of the the id returned in the response body. If correctly configured, when calling Get Media Asset, the response should return a successful entry with id matching the id.
Run once to validate write permissions. If successful, optionally run a second time to confirm that overwriting is allowed.
Note that validation results are only available for 1 hour.