An action is any change submitted to the voting system, such as
The author of this action is: Bagatell, 1VgVjyeCD7yQqitraVvNrZu5tFiaKHDGC
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 5e3445ea2e81fb23bec02ce937a48ab70511f2909d0f9f116cb61cc762e42bb4 by Bagatell answer (accept)
Signature:
H/1FIWDueWoZs9JPT3gLnLZsX/apnLBjAUpUsFl/CNhKYJW/dDCRxN7NyRqa4KN1Ekxw1bXDYAhxHHFOF0oXcwU=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.