[{"senderKeyId":943030430,"senderChainKey":{"iteration":1,"seed":"rvlBxZOlYZbPtzhB8rGpqv6kYuwYNqthPEcz4lP7R6I="},"senderSigningKey":{"public":"BRRvtgZEsS8hv+iLMnjlA0kdc44kyXZuWOl317ZfpGt/"},"senderMessageKeys":[]}]