{
  "manageEntity": {
    "action": "Download",
    "entityId": "1235497440",
    "entityType": "Track",
    "nonce": "0xf98416d38afb24b8a2e001ac0221133aed8a767e1ab01a0dd9d58b9e929a4785",
    "signature": "0x1edaa512bcf0e67396bdb433e7dec82688d6d9e018324d1a1d962cdecca080504c355f671c52669e356584b6e713a7f7fe0636bdc3a0761978060bcdb4cd0a821b",
    "signer": "0x9be428b83c69Ab7278342767c9062d747a7f6399",
    "userId": "879639434"
  }
}