{
  "manageEntity": {
    "action": "Save",
    "entityId": "1828327883",
    "entityType": "Track",
    "nonce": "0x36666d5d08a30119eb8a7a965aceb1583fa68042ec0bac7a5b48d2545b94195d",
    "signature": "0x3b0e54e7d6de043daebbbbd40ece7e148512a53ed6ec2277b60449c21ed801d124f42fc63938164572b6be31e7719221a5d3360173a78082ce5177ebe9303fcb1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}