{
  "manageEntity": {
    "action": "Download",
    "entityId": "306709013",
    "entityType": "Track",
    "nonce": "0x29a6d2074da678549baa3d6491b3275302e98fdb1b185fa7f6f120926b30ed0a",
    "signature": "0xb8c43ba91980e0d2fecb662e34b8eda3cad652e6df869ba78d0c0261639650f32355b5108c0ceafacb100b8a740afdf1d84d97ca6fad5c145692eeae2fda44ff1b",
    "signer": "0xF1fC1d1C5e0Fa2C37eb724f58476fFAff5ADbDdb",
    "userId": "557158813"
  }
}