{
  "manageEntity": {
    "action": "Download",
    "entityId": "1956937885",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Athens\",\"region\":\"Attica\",\"country\":\"Greece\"}}",
    "nonce": "0x1a6c3f4b890eb8c69b386e79bccdcdd658b3fd94c4c6acd384693972a5702a19",
    "signature": "0x710161aa43a69126d38d07819d755937504b2063c11f2c4ca98ad20c7fb84dba09a7859b3155b94217321b22975bc7f549b2a3e5994e49746e78ba4b381766551b",
    "signer": "0xb94b1BFe56c05A0F6C04f46ee6df28BE80EEBd95",
    "userId": "105933976"
  }
}