{
  "manageEntity": {
    "action": "Save",
    "entityId": "1091005842",
    "entityType": "Track",
    "nonce": "0xfa0b6ee96c50eea6a1785e4d6d0930c103023c2baff9cea2e39774e9c54baa31",
    "signature": "0xc3ba61ccb6b2c1f28755f19d6f93542d37ab306753dbcd2ed86496e04460c1842de18b1fbe6f17520837f943b212853aae40160c1c27bf811625384185a7a8821c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}