{
  "manageEntity": {
    "action": "Save",
    "entityId": "835644090",
    "entityType": "Track",
    "nonce": "0x71a05aacf7feffe852845d13236e244a2e37d59a19d661ba141aeddb92f4ceeb",
    "signature": "0xeadb6fe0d8e89da4281754497fd83524fcc2034713f1332d735d5381395afc9517bdc18f2e6ccd3940970b7dca6dc9603e44e2c8ed4941f335d4eaae16ac50b61b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}