{
  "manageEntity": {
    "action": "Save",
    "entityId": "1174276014",
    "entityType": "Track",
    "nonce": "0xb2e6cd79182577655ff55cac4285e077c3e248ccb173dce6752fbcf5d6446d79",
    "signature": "0x2cc9ad68aa59e6cd271794f413b26b901034b6ba5c484835cb22a9ef93ef10ff6abf456e626c410cf16e22c11d52e816ecd5d713268533cb12a1125b9b82619a1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}