{
  "manageEntity": {
    "action": "Save",
    "entityId": "1724219141",
    "entityType": "Track",
    "nonce": "0x3e65528a86d6a8500acb2e96c634de5e9d6e609b2ec1b9890f2ac70960a132ec",
    "signature": "0x61827ed0865212ed70c5b80d2f4f099c67d7d22967658adfed34260c81aee0932cc6ddd4e3c70b4164792e59e9accb811cf8b78e9452446fcbe820184ae6df281b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}