{
  "manageEntity": {
    "action": "Download",
    "entityId": "1844204190",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{}}",
    "nonce": "0x4a0b85a8234daf55dee98e09a80c27fa722193b1cf989ce0a4d9a3cd5e9838bd",
    "signature": "0x3b6e6726c88a3b5ea91a655c352606c4d58469119f5e03b2aa436d06c734af4a039736c84c6bafac9577f95be71b37fb54d23f448e7bcd5c8da5687d1d55222d1c",
    "signer": "0x72119e5C4B7Ce3C0c856D159A264C02FA71570DF",
    "userId": "80047"
  }
}