{
  "manageEntity": {
    "action": "Download",
    "entityId": "16528268",
    "entityType": "Track",
    "nonce": "0x5fdf69e1b6a592d862ffb777454c31c5d1a499ebf6cbcf51299835c5003324b4",
    "signature": "0x2a0b3acc7bb8314f5848d027bb7dd0dc9a9618856263be207a3151410b6c7d2b32d60060cd8608ed36186acebbe3fb8a3c40ab64e59e8a5cc4e2e4949bf1d7a41c",
    "signer": "0xa88DD194a2E1E79c3Af64b8F4CC80692918eC02a",
    "userId": "303587971"
  }
}