{
  "manageEntity": {
    "action": "Download",
    "entityId": "428628937",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"San Jose\",\"region\":\"California\",\"country\":\"United States\"}}",
    "nonce": "0xa3c77482805efba815d0c82e796e97b8e6d639a648b3cb43a2ea40659c0de6a0",
    "signature": "0x744b8c7d97182de5bdfbebc6e8ffc35087336a57acd332e2cab600dd6206cd6e3ed637cd670267bd53ed8034f5225c4346a2fb1c9c4666fd2f2984c65900d7471c",
    "signer": "0x6CDd0c0FFBA25fF3A1e67aFb0149c464d2220E65",
    "userId": "675469944"
  }
}