{
  "manageEntity": {
    "action": "Save",
    "entityId": "109097",
    "entityType": "Track",
    "nonce": "0xb3b0640bd0ef3871c5758684397040b032939d7b63c5973f740877210e4cc5d9",
    "signature": "0xccddd818491aee294a9c6d1d3685a045323f84204a3f3460f0d8e482fe61105d65766216d99be3368dbd01c7b40d060076d8b2bb1c9d83be6294e171e7ea83111c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}