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: 9a68078bbff9de910bb8c377e699832cc907f9ce048625b18b0fe7ea1da14689 proposal-upload file 5a6f539b9a53279c322e84289558f1aa7237fdaf56844ae6ca0719355e4e06f9 by solex
Signature:
HzRNmO4Mbjx/UKchVBg6B43OQhaz3y7+g3wY/eulwU7NFN0nPLYSTaZeSOr/oK0V/Pr0PGx6siHf8tHDSx4wF2E=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.