An action is any change submitted to the voting system, such as
The author of this action is: solex, 15TiujYmnHa33fjEnasBBm1eWcGx9YEXPL
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 proposal-upload file d94a8c6c9e328962bb54679683637ba3436814c68c0e3c55f99dc548c5c562c8 by solex
Signature:
H4o6HVVHjCcDQkr25jEjf/ft106fagV/mwKZwMwn1MQvUGOBiiWzLhn9be/gOe8zMiQfPe3jd0Voaeo5Po7il90=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.