An action is any change submitted to the voting system, such as
The author of this action is: Peter_R, 1BWZe6XkGLcf6DWC3TFXiEtZmcyAoNq5BW
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: 89efdbe4e464fb1ca1f2630b0c14b60d7256410bcd2bb99b98f7aab13b87546f proposal-upload file 1b8ff95d08bf286ef7e0402ca45df73d9686c658292abd7202bc8dba00430baa by Peter_R
Signature:
IJiz6lP/yiaa55hWej8UuMQJn3riJhY/gPzTkWBU/z6+jygkJ3i1ui7DbwLwndgLDbC8JaSnapbRrSg2O56YnQE=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.