{
  "manageEntity": {
    "action": "Save",
    "entityId": "2116842908",
    "entityType": "Track",
    "nonce": "0x5b87b568228e18d7050934849988fc101865cc20f218f912924569b4e08245d8",
    "signature": "0x7c10f65cacb6a30f9ab3d36bc851f1a98034eb0bf305488328194dc59324794b290e6cc677487d5ab8dfcdebe369bfe64fc2c68c2f3c5157d529777571bd20661c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}