{
  "manageEntity": {
    "action": "Save",
    "entityId": "996100670",
    "entityType": "Track",
    "nonce": "0xbebeb702036d49c0a76584d967b4801105da32874f56f123080bc32cac58d2ec",
    "signature": "0x914f7b440f2f1e1eecd77da6da4af6ec67ed66a71bdeb3493b4f243956144e2868e39973bb79d59a4977206f006a13635495adffcdda6c2ab356e814b4755a901c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}