{
  "manageEntity": {
    "action": "Download",
    "entityId": "1294990204",
    "entityType": "Track",
    "nonce": "0x81580cedd9bb9e30341872d4440d27df18c20e37b586bfef1e367525d04aaab3",
    "signature": "0x51b0de77ed15c771522f133a1cba746d75e91ec7f4229fd86697f8eca469861b13b915c3c712bf17d6bfdc6ae3c358a777e41ec4e15ace7969e9db6db921e61e1b",
    "signer": "0x475193dE7A87522aaE7Ec9cfb70a88ee05a0E0c4",
    "userId": "389012656"
  }
}