{
  "manageEntity": {
    "action": "Save",
    "entityId": "200933",
    "entityType": "Track",
    "nonce": "0x8c25d44ad128f10d6c6e04fb660db0add377e093da96b92cf9adbb4bcbc2b5d4",
    "signature": "0x21ffc6a964dc1ec1920da78158e9418213675fd9f5d16e5a15e81986abbdf660583d1330a4e667b6686ac39953054c2f56cb5cf05c80cdc1b318a950d1f48e1c1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}