[{"senderKeyId":1492642869,"senderChainKey":{"iteration":1,"seed":"F0YwAw9errfuPqSOQr3+sbmcMHywXQ5JhaQSNY+x7+I="},"senderSigningKey":{"public":"BWLWsERE8/EqU6JFNq8P/h6E0agjOXjOEBuzF+mvkPRI"},"senderMessageKeys":[]}]