{
  "manageEntity": {
    "action": "Save",
    "entityId": "108753088",
    "entityType": "Track",
    "nonce": "0x851128176476a310233a9dcab257368672e8bca183072413e115fb2b2ac6c412",
    "signature": "0xa50cfdd8d566d27d264d6ba4b5906c15e218d20c747f72f9d99c7e43afe71c9b6fc70851468d0d745042c7d1ceb64caa9f961bfa861b033a9753ef268ee72aba1c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}