{
  "manageEntity": {
    "action": "Save",
    "entityId": "92578",
    "entityType": "Track",
    "nonce": "0xcf1396e99a3773b3db2a45f3ff8ee42c74c13c9839d422eda339b335be3aeb9d",
    "signature": "0x6c0b1ada2b1a7f1fb9b152a9e3b772acb7fffcdb5e1d93e00af810970c658c213eebffc3c3b7941b6da4abf5ed25d00ab97cc8b51981cd3f7676d324ec5a83641b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}