{
  "manageEntity": {
    "action": "Download",
    "entityId": "1337640638",
    "entityType": "Track",
    "nonce": "0xf43f43fcfba0b2e00e135e49a1cd37531c74c779b28e2c08e047ff089f38e16a",
    "signature": "0x6317c5dd91e208e2570e69087b598efb5e7134e5d37e33e856661d21b711ead960b973a62d0725545e4c30256bf1c01dbb94f66b4bf49d0dee9501a1d4acfc7c1c",
    "signer": "0xB8eB041c99d83265B611e0d5172A226432Aa8e74",
    "userId": "763164503"
  }
}