{
  "manageEntity": {
    "action": "Save",
    "entityId": "2048624038",
    "entityType": "Track",
    "nonce": "0xbda5618d730f1548e2cdec18bc1b9b3c132b6b5b4306f04b1672ed894d6226e7",
    "signature": "0xcf25f2d9afa32aff8e9969fbbd126f48e2aaad13cc5937501b588f6c86b1bd4e2c81cbdf57755c477a63920d2728bfb02a1e58bad01b6b2d984a2dc58a464ad01c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}