{
  "manageEntity": {
    "action": "Save",
    "entityId": "1324526316",
    "entityType": "Track",
    "nonce": "0x0bf431d6c02a21d2600d7fc66da48677c7b75ca2126a4eeddc686ef10d4617a1",
    "signature": "0x8bc181cc1d833118dc90fefbc2c79a96ae8e62a27ac469ecd0c161196476437615ea952a9103ac07d15e3695d5cc033c470620d11ff1370c050fc945215cd9201c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}