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: 5776292860f8c233038833f18c8d4eaaab686efc9dc721265df14d3fde9f2efb proposal-upload file 51d3d50fcea3d2dc3fcf2043f939ea2199552e153328db6a7b8127e931659dd7 by solex
Signature:
H74EFjKDHP8yOjQlgek/+AZj2/mZU9vSHWwGkf6w/1q/bVRBHNl9vZLDF3VaTtaiOxIVc4XiaUqzuuUbuqTC1qU=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.