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 b38ae3379f71f63bf8df57a0e970cab0baea5e77ecc4702f6f4087b466e2bc11 by solex
Signature:
IAB4QKWUs+K4oI6Tfp3JPYCD/QLzjXU+PoDr7wGUFh6mGMY4gyYtbXd8LWxBSj1bR6Bc+CA1HbkMZzY2btD3CEk=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.