{
  "manageEntity": {
    "action": "Save",
    "entityId": "1014556",
    "entityType": "Track",
    "nonce": "0x5a64917a583edf7e05533e08783995641fda7fe880b4b3a926a3c5d84bcc23a5",
    "signature": "0xee291c8c04e684c52199af13d74b5c17052c80548941d2a87bb797cfb365da8a32352d5c5e81ab1e6ba9b382fdceca111d6d2175881f8bb5107cd023d8baf22b1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}