{
    "data": {
        "publickey": "034151a3ec46b5670a682b0a63394f863587d1bc97483b1b6c70eb58e7f0aed192",
        "signature": "304402200fb4adddd1f1d652b544ea6ab62828a0a65b712ed447e2538db0caebfa68929e02205ecb2e1c63b29879c2ecf1255db506d671c8b3fa6017f67cfd1bf07e6edd1cc8",
        "message": "Hello World"
    },
    "passphrase": "this is a top secret passphrase"
}