An action is any change submitted to the voting system, such as
The author of this action is: kyuupichan, 1BH8E3TkuJMCcH5WGD11kVweKZuhh6vb7V
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: 9a68078bbff9de910bb8c377e699832cc907f9ce048625b18b0fe7ea1da14689 cast-proposal-ballot vote e66fb1cba4a64af72b7b6f8776704583e18cb9ed5b72d34e1659be6f31df439b by kyuupichan answer (accept) # proposal: BUIP078
This action is part of a multi-action and only the multi-action is signed.