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: 6bc2c8b25a62112738fb003b12767d1e828ed032549819ff8d7182384ac0e388 proposal-upload file 2fcb18dbe510b8ad64294b54f08633fead5ca8495c55d79d3c09ce1d21f49d73 by solex
Signature:
H+u04IjkHaCwlCnM6MBHwbGRuT4c1sf9W/gGBwAjW5JfAm/PtENrTHsJHGd2zwJdWty1At8NOlKX79Y+zupzvP0=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.