{
  "manageEntity": {
    "action": "Save",
    "entityId": "2083247195",
    "entityType": "Track",
    "nonce": "0xceeb952cbf6b8931e3eed08323c00a1728b7422398526df9c3c40840b8b790a0",
    "signature": "0xef1480a57f5bd9e28fd6d21aef5884d2edb0a2945dc42041e6a2f5f7609a27e716cd1e8e19032d28a39d95a250c5e1a0f648b87f6e583c41de1baf0b9ab176051b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}