{
  "manageEntity": {
    "action": "Save",
    "entityId": "791062",
    "entityType": "Track",
    "nonce": "0xc27cc4c6a8e585874c26d4c3658ad41e59d4c29c136ea5b5f064adc3c031dd9d",
    "signature": "0x094ef1f299fd7737343e9febc6393917aa8190929f935e495bd9700ee64d6eb548fb786c960d42c828e23b3a977a9ded8676a4cb57d5beb4fd665dafe13ea4f51b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}