Add a new validation key

Adds a new validation key used to validate signing keys. The new validation key will undergo an approval process by the workspace quorum.
Please note that this endpoint is available only for Key Link enabled workspaces.
This endpoint is currently in beta and might be subject to changes.
If you want to participate and learn more about the Fireblocks Key Link, please contact your Fireblocks Customer Success Manager or send an email to [email protected].