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: 5e9787f328d1f39d6dcd58bd70c28c9b36c7ac89f7a29d45950698b7e8ea49f3 proposal-upload file d4810ae4d92df32c2206098468dabd41584dd55fde9a3a54cae983d3c25cdf76 by solex
Signature:
H/rjc//mPVcVrI2q/KfBbpmkk4Jxj948JOghrJA1C++GSX/3SBfu1uQRje/48rIvfTPp/kyPe++EhjgCCKTTpgY=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.