[{"senderKeyId":321172287,"senderChainKey":{"iteration":4,"seed":"xGNH+ckdjZ+Y6Nm8/Mw117qyN1hu2pHMP6aHqdJ0kUc="},"senderSigningKey":{"public":"BY8kArn0GeaLPzOBNROl8aRCSTusH2iqD+vT7x+/Ec4H"},"senderMessageKeys":[]}]