Remove distributors' access to token data.

Disable access to token data for distributors by setting the token flag publishable to false. This endpoint allows token owners to revoke previously granted access to their token data from distributors.
When a token's publishable flag is set to false, it will no longer be visible or accessible to distributors in the system, effectively removing their ability to view or use the token's information for distribution purposes.
Access level: Token owner only.