An action is any change submitted to the voting system, such as
The author of this action is: Zanglebert_Bingledack, 19a3fheZVGragEreBzXhjWMuSev2PrHToF
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: 242bbdbc67846623368b9d1fae050d6815f1942093617033be4db57ffe21c9e0 cast-proposal-ballot vote 1698c3534a5afa8a11d656d0eacbcda59a0831b2958e6010d6791ad7ab1d77fa by Zanglebert_Bingledack answer (accept)
Signature:
HCS+XtB3kTP9Zw7C3XiSSkm8xO5fAN9mLkWc6UGPRum8OQcZ1vBPXuovdrE5ja/NI6LA9wiZdCJavjfIi955qXs=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.