{
  "manageEntity": {
    "action": "Download",
    "entityId": "1536672618",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{}}",
    "nonce": "0x663ed446e702c7073acd6630c20e339641a5375ab4441b5b9612d4f039434150",
    "signature": "0x3aca1922ec628bc7318882bce04b0bd4ecd72543efc6b8ea0d13ca3d47031ad25a54ad4eb408c3dcc8b078e5cd650589a85bbb21db83bea8399d13c21afac4371b",
    "signer": "0x5819CF694D8Ca0F9EB0D175Fc1dCE05C5eD59eeC",
    "userId": "417992993"
  }
}