{
  "manageEntity": {
    "action": "Download",
    "entityId": "146357467",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Semarang\",\"region\":\"Central Java\",\"country\":\"Indonesia\"}}",
    "nonce": "0x1e3423586d6f140e3dfd2c961b3d7831089fff202b25b7626fc6380f33afdba8",
    "signature": "0x2247a90c97d7afa7c5c4871471da1f7126a89aa58c34f1c2b6bff0e75c20256d615652ca242ad6fe13af2523a0cb6d305d75a3276c43dd4224665301a0db974f1c",
    "signer": "0xA6b6bcca1EC009872Bf2e2ed62b0bCb325071737",
    "userId": "369033910"
  }
}