{
  "manageEntity": {
    "action": "Save",
    "entityId": "160180",
    "entityType": "Track",
    "nonce": "0xd71c5080ffdf65c45fd8037406b80747aad504fe806234c24682f2c2af81bd23",
    "signature": "0x9ef4777a27515270aa79d7231b69b1471e00ce7f48dfd080e98630d45668064557e6962f6da1a4097a63de081e36030ca4c8378c2f322ec9a1ea547da44a8ecd1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}