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: be3c66388058cc34d9e899e516e8ed808b294bb3d567008f12727ed5d8b5e3c0 proposal-upload file 867a59bd5183e603d7152423232a8c3a1fabe02abd37ed7ee5fbfae54c1ee577 by solex
Signature:
IGclnCGfhF1sjEAZbVJJEyrCHhuIPkCGFL+mJcWUGoEeSxTDO4wfZgGk22lRT0+krtFHRC7M/UrNXA6n6acM3NA=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.