{
  "manageEntity": {
    "action": "Save",
    "entityId": "1443111412",
    "entityType": "Track",
    "nonce": "0x06cde0a5add2c515cd5e705b7e9c7eb241570eccbc1928ccc0c947b9b4a3d66c",
    "signature": "0xa9d92365f90acf4cd39fea223e87ab88f84dc79d1ff702ba187abac02d49efab67373826ac4bbe2a7eb72b6af318328c92306de71b54d4a1d7958ca13d6f486e1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}