{
  "manageEntity": {
    "action": "Save",
    "entityId": "795953349",
    "entityType": "Track",
    "nonce": "0x1ff28094d20a14032603a57c56f18e84f963dcb1d91946a0089de301f1cf7d67",
    "signature": "0x8392a7a60f0a92651eb958b54c7c4d25373b3154d4dab3de9fe6cb438be252cd00c63e195b6e164c2c8acb92f7d029ed31e842830c35902167d911f6a1f0eddb1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}