{
  "manageEntity": {
    "action": "Save",
    "entityId": "103110774",
    "entityType": "Track",
    "nonce": "0x6ccdc4acc64d789a5627e6293f7d1ab84ec153774c90de8f855fd73880a1c8f0",
    "signature": "0x78d472808b0916d645c110f89d03e99a1e7f9246c40ab0490277f3738f270b212e1b985c200f9608eb9db0ea2d1de1bfd087ef427a7802bf1b17f98fff8759811c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}