An action is any change submitted to the voting system, such as
The author of this action is: Jonathan_Vaage, 1581sovLFohMPPaxYG5gYLLGjmnemagc21
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-proposal-ballot vote 61417a9947668de80138609d364225b468869d553da5f578e2b39e7de767cee0 by Jonathan_Vaage answer (spoil) # proposal: BUIP115
Signature:
IIhx4AmKCMe8+haSKPORVaChCK2ZukCIRRcpvL2pURqdctujmhTp7DLAlw3HpI/v4gbz3xZJAq5CQpTe7uD3IqU=
This signature is the base64-encoded Bitcoin-signature of the above action string, signed with this action author's Bitcoin address.