{
  "manageEntity": {
    "action": "Save",
    "entityId": "93763447",
    "entityType": "Track",
    "nonce": "0x1684cde71f395c7d92593799814656673b03927b22b2220b62fe853585d6e4a4",
    "signature": "0xa29aa238e17bd0dbbf9ca2c84d56f5e0013cb358ba4ad175ab152bf435274be3559d00ec8092934abe4b96f0dbc5a0addd723b717c1ef5d9de2fc9e65a33225a1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}