{
  "manageEntity": {
    "action": "Save",
    "entityId": "235119187",
    "entityType": "Track",
    "nonce": "1788446277530117607",
    "signature": "0x7ab969c67b6c80a1f16f0e46c0703fe9b481bd28e292d1e904c2154030034c9310bc92a3d6e8e790d9107c631914de58ddadceed6ed4e34dbfaf4b58bc10bd951b",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}