{
  "manageEntity": {
    "action": "Save",
    "entityId": "2052310434",
    "entityType": "Track",
    "nonce": "0x451f48643aa05e7bde0963998a15801e506e8c740aece8b886f1e9461c214558",
    "signature": "0xa86cdd84e2c6d8899bfbf39283cdb805712bd456489fb54164a1e34cdffb0bb53699b2ee736465b161133267d4a33ae4e2b4e8266eb4ab375e6fb0fcdbfa28071b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}