{
  "manageEntity": {
    "action": "Save",
    "entityId": "1771784133",
    "entityType": "Track",
    "nonce": "0x0c5c1e0e53dcf7a6c2f79b3af844c773a59da569baaf0e189f3f31399a780e06",
    "signature": "0x7f1cee3952da190f81004fd52116670f38971f80ed9e53fb1cef99033e2ae422728922f436f8d28f7481b6e84845a7b1c0ab108266dfdd8c39f088a31ccc4e601b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}