{
  "manageEntity": {
    "action": "Save",
    "entityId": "1359606276",
    "entityType": "Track",
    "nonce": "0x58e124b23f09eba10063d013e96d4395e5b5201dc7ca739ce0af0920f9570557",
    "signature": "0xe96832b0703d600e85e8a8a96bac8bdeb38528e16004c8e876ad5a6f5868e1080b996c0413c1e26a2c1722869e24077de34b46462c9caa95cd65db1e7bca45fb1b",
    "signer": "0xDb2e7CDC13024B14d99968077CeA4F168D0dac84",
    "userId": "311476764"
  }
}