An action is any change submitted to the voting system, such as
The author of this action is: norway, 13eS5t4WGGPSwFKRQYzCKcfWF6sfjN1Ka2
The member list that this action was made for.
The action string, which is the actual "command" part of the action:
bitcoin-unlimited-voting: cdb3de1a02836ad7aed816ac9c6245b5dcc2b41345865b7ae3026a29ac290758 cast-member-ballot name RichyT address 1BRvGQ1STfjHQny8W8Njxay83AxrFYbRxf by norway answer reject
Signature:
H6SwAWZyDanU8LXpN+2bxGT5+g6tF9UUpkKtzuN9ighGV9nu4wf5sO2i+5O3o6f/JNyiL421Oh8L3g9FPTigaHI=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.