{
  "manageEntity": {
    "action": "Save",
    "entityId": "61942",
    "entityType": "Track",
    "nonce": "0xace11247bd8840e3dcd874f23365dd794ceb964d700231903694d0fc027fdecb",
    "signature": "0x0e8d148ca935cf2f194f3b86cc3f3870e7bfb2a95776740c0da11bd3c4f9ec7104ee97e7438a99dfdd726ac2e2b0bfaf9cf221f0b7fece006be66c4f88edcf521c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}