Unsupported
GET /user/ssh_signing_keysUAT - List SSH signing keys for the authenticated userPOST /user/ssh_signing_keysUAT - Create a SSH signing key for the authenticated userGET /user/ssh_signing_keys/{ssh_signing_key_id}UAT - Get an SSH signing key for the authenticated userDELETE /user/ssh_signing_keys/{ssh_signing_key_id}UAT - Delete an SSH signing key for the authenticated userGET /users/{username}/ssh_signing_keysUAT IAT - List SSH signing keys for a user