{
  "manageEntity": {
    "action": "Download",
    "entityId": "1930196197",
    "entityType": "Track",
    "nonce": "0x9392dfd6310bf0297ec35777ee31bf30bcc7e3f3e6d51239486c0a9a41d3ded9",
    "signature": "0xd92b861e531a6c01c17a59c5e09a7017baecd3e4cb44c168d9f9b44d379ff5a250715a52e899e80c7d9837cca92e8e73a0412b3cc7ffa25e0ab913d8de9d56541c",
    "signer": "0x7f155BcfD3c0C64fA485d1cd6d272Ea13B9A6815",
    "userId": "430749710"
  }
}