An action is any change submitted to the voting system, such as
The author of this action is: theZerg, 1zerg12nRXZ41Pw4tfCTqgtdiJx6D1We3
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: 17fedb2146b90528805cd8f43b585bfbc3db5e1343eb665d35e9976118a970ce cast-proposal-ballot vote ad445d11595917a75356697394899470238b191da0bc9b30cabd4e064d0565a6 by theZerg answer (accept) # proposal: BUIP086
This action is part of a multi-action and only the multi-action is signed.