{
  "manageEntity": {
    "action": "Download",
    "entityId": "520774",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"St. Petersburg\",\"region\":\"Florida\",\"country\":\"United States\"}}",
    "nonce": "0x6518706967e0e49947acf57859d7c5e90f6aa8abeff0a764aeb522d31a26d20c",
    "signature": "0x5884a42ed028f67abd77c72efeab2d33d24bf56fa02a6803c2499aa6cfc6145c0df5e6f789e3e127c6cbb0de21116168341e330aecea35608bb2d4d8ee542ea21b",
    "signer": "0x28E041745695914518512137a56c9810034C10B9",
    "userId": "134529"
  }
}