{
  "manageEntity": {
    "action": "Save",
    "entityId": "1593328213",
    "entityType": "Track",
    "nonce": "0xa39253d404adcb5ef308f8d1d858bd76d104179cd91084f0761228856d72f73b",
    "signature": "0xa12df05181b3c22af6633ab51e7beb9889994e3644b7cd9d518ddd46751e8dc41080d07d6bce0bcc93d1403c6acac74ed02d14123b68c9f151781d084ccd65de1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}