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: 9a68078bbff9de910bb8c377e699832cc907f9ce048625b18b0fe7ea1da14689 proposal-upload file 64bb70d3f0794bfbc852771b9c4bf57266c15a55d50093f7e4a8df884d1b2988 by solex
Signature:
IFNpY/iX2xjvszPAiYxJrY4VQvIxM7Z0QhmgyvhdWBvAUY+4oUNpxSD7UWXzorabYCaZ+E31CwXnatIRHloHyJ8=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.