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: 17fedb2146b90528805cd8f43b585bfbc3db5e1343eb665d35e9976118a970ce proposal-upload file 6d3eaa1bc41c3d471788e8a1ade0aa64ea1cda9ee210652be75d92d57a2184d3 by solex
Signature:
IFE6UVyL1GsSBtNvaxF3RRs27ekURveIGo3KS+RFzP+tbTCOq40YHoI389DuBrkPLXbr4ABdrJYAFVvvu9a9H68=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.