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 c8d6c8ba6d8b05de40460151785ce9dcca28c65351270713631a5ca16c59135c by solex
Signature:
H1rd786TTyaMT47kMSjuFAj/vsCUtCT7Qvs/FOfh8sAIIhXVy/Dc2malWXqrQw+AgMEap34+yHDPHq9QmMA6eMg=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.