{
  "manageEntity": {
    "action": "Save",
    "entityId": "1056282",
    "entityType": "Track",
    "nonce": "0x95c1d2d951ec56d26ac98404aa82764e1b41058034a52e3c152b07d6f94b3090",
    "signature": "0xcc77d18aca0213e8fa96f95726267f4bfa9b81ba3094b36f6a27c9547161965b0a7485b7ed6478894c52fca8c99c7cec746c87d53f844e996a133521a200a2a11c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}