{
  "manageEntity": {
    "action": "Download",
    "entityId": "431280509",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Seattle\",\"region\":\"Washington\",\"country\":\"United States\"}}",
    "nonce": "0xc1ca513600a8bfcefb24f7b64135c0b3814d63c029881aa5a5fc878b0707352d",
    "signature": "0x978fa468b6650291fdaca8b19979eeed58c08ac03bcbb7468b5c9ed71da99cb33069b4b7d152363675ea8a64ed32640c1470955e82d4b5f49a7def0f6500a3b91c",
    "signer": "0xdAe27B20BF3639989Bd99E76811FEF26BEa4Cc49",
    "userId": "176556"
  }
}