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: 6bc2c8b25a62112738fb003b12767d1e828ed032549819ff8d7182384ac0e388 proposal-upload file 3430b896132f3564eac7332ab0e7e07de466066571a4e7fd4dd6a29cbb178209 by solex
Signature:
H+CQNFlhvEl/8FwE6fkYiJ5xjmvMb3pMexG6U5lu9jN6MAA1ctJ1o9FviNxL9qqZ6nUowVoVSqckPte/U/D1eIg=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.