post https://hubble.figment.io/api/v1/prime/eth2_staking/validators/exit
This endpoint allows you to unstake ETH from multiple validators at once.
You can either pass it a withdrawal address and an amount of ETH to unstake and we will figure out which validators to exit on your behalf.
Or if you need more control on which specific validators you would like to exit, you can pass their public keys.
The endpoint will return a list of validators that will be exited together with both extimates for exit and for principal withdrawal