{
  "manageEntity": {
    "action": "Save",
    "entityId": "174695",
    "entityType": "Track",
    "nonce": "0xfcb2b1ad3b07314c1cb097da8db0cccbe9ee2bce501d4d158c265d2d78f938ad",
    "signature": "0x37cd8e2d5c3b6da52797528a9ad1cd314d95bb0d0ef9c26f1421ffb1b7216e19610264f6ff2e41a69d92ddbe23b1ae1fb623ffce91d7944c253f0b24bac54b6e1b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}