{
  "manageEntity": {
    "action": "Save",
    "entityId": "201130",
    "entityType": "Track",
    "nonce": "0x95f2c38d91151a22d413164db415e138980f3e15ab84d6524b00c80deacecf77",
    "signature": "0xf00290500cb31247075dc04f6370f5f1f64ece423a5c1596602ee1cedb1dca5e4b1b96cbf035777994555f5ab74ee4fb1f24be83c0d5410ccd0a1f0de4b347531c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}