{
  "manageEntity": {
    "action": "Save",
    "entityId": "33387206",
    "entityType": "Track",
    "nonce": "0xfafece6321534a5132af06c95f95f0319fcbdb15bd28b0827710e610da9d5a23",
    "signature": "0x2fd3bbbec5b276d6b944dddaf823838ab5cb687b0e74eb73e5345a87e0947dde0c11cfb9789859f13aab34672a1226187d92e22ca7c02ade7cafa29cbebd3e3c1c",
    "signer": "0x06Ad5789cE045C5B0AeB97849051a7385CA95B4a",
    "userId": "270209897"
  }
}