UMA - That's what LightSpark came up with.

"The UMA standard combines human-readable Lightning Addresses with real-time, global payment rails. It extends the capabilities of Lightning and LNURL to add support for compliance and fiat currency FX."

To me, it reads like "KYC Lightning as a service". Lots of Travel Rule compliance speak. It seems like permissioned custodial networks for transferring any assets over lightning.