{
  "manageEntity": {
    "action": "Save",
    "entityId": "81235",
    "entityType": "Track",
    "nonce": "0xf3805447bf57203fffc48e1924a8857c69626943bf48133305d0485b9d77f6e2",
    "signature": "0x5aba450cba3cb7035ad21cd6f7635b4478532dee395f3edbcb436c17bc162049606c355e1eca417167ad7fcea790fe718d85cbf02d9f51c3a90af4b4655bec0c1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}