{
  "manageEntity": {
    "action": "Save",
    "entityId": "2056245962",
    "entityType": "Track",
    "nonce": "0x278b5d32a4a971231f73e991026dd4fa287a916ca331c31d883f728e426ac1cb",
    "signature": "0x70063c3ece62f68bf0ff8a6be98326b0cbb4c27dca9f2060f6efb7a8200a39fa6796473a9c91f118fa4b6ecf17747284ae493eab8d33f905640406f6d7c8e3891c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}