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 open-proposal-vote meta 5f8a15059a270d3396aaaaf2eca302f98cc30bab4d6b832b843121ad7f8e9872 by solex method (buip-acc-rej-abs)
Signature:
H0im7l8gRkLw+xabR/DtnK/7MUrh4RH2fEFD8aq6jL4gSmw/i0tT7ZU5p1FRuwF5GxPxie+fI0JKaOlvDC5OZ9g=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.