An action is any change submitted to the voting system, such as
The author of this action is: Bagatell, 1VgVjyeCD7yQqitraVvNrZu5tFiaKHDGC
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: be3c66388058cc34d9e899e516e8ed808b294bb3d567008f12727ed5d8b5e3c0 cast-member-ballot name jtoomim address 1FL9Ln6DTcp9HgTUkc6rFaePqGLn5G4d4M by Bagatell answer accept
Signature:
IG3EogpKSMajx3R8Fu4PWikvvfIHchZwPRTC5xreAAXCXVApJHDprxJcLTnC65845ZCzFyYqz4W+2wIk1wGNLLs=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.