gatewayUpdateTlsCert is a command that updates Gateway TLS certificate
TLS Certificate (base64 encoded)
How many days before the expiration of the certificate would you like to be notified.
Set output format to JSON
TLS Private Key (base64 encoded)
Authentication token (see /auth and /configure)
The universal identity token, Required only for universal_identity authentication
GatewayUpdateTlsCertResponse wraps response body.