get https://svc.blockdaemon.com/boss/v1/ethereum//signed-voluntary-exit
Generates a voluntary exit message, but does not broadcast it to the network. Instead, the signed message is returned as part of the response. You can use the Native Ubiquity API for Ethereum to broadcast the message.
Both generating and broadcasting/executing the Voluntary Exit Message is only possible once the validator is in active state (after the activation queue), and the validator needs to be active for the minimum active time of 256 epochs, approximately 27 hours.