{
  "manageEntity": {
    "action": "Download",
    "entityId": "328839",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Porto Velho\",\"region\":\"Rondonia\",\"country\":\"Brazil\"}}",
    "nonce": "0xc28907fd53d5f1fa8f8f5c98f0592c68efe4a5748f860402692e9ed96ebc867b",
    "signature": "0x3989d3b23e0158c48bf28e9f36802f733bc7c58eeab69f63503a97c7750dbd0e5998037587a859a565ee805de57fcd2843dc5ae63c8d0f91f1c8ddd342ea8a8f1c",
    "signer": "0x7989938D3DFd8D32a3f1e4dde05a10C391664B68",
    "userId": "150045117"
  }
}