{
  "manageEntity": {
    "action": "Save",
    "entityId": "1117076201",
    "entityType": "Track",
    "nonce": "0x5e1cf6bcc5924c002c01f4a621dbd29204d48346abfbbfa272e0f07e378521c4",
    "signature": "0x3ae46171107bfaab201f6a67d0e48b3fbdb2d83a7aa5f196e5b3d36e0e0d2158682b4361e72e1309ec7e933cf83e2c1945eab5c470b7ec52d0022633a5539bac1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}