{
  "manageEntity": {
    "action": "Save",
    "entityId": "678171082",
    "entityType": "Track",
    "nonce": "1792445782248797438",
    "signature": "0x244660374bf6b9cd12e3db84f187d8c8c1850d9b8827cef53fa3dbadab12c6e7519e2a744382ee6ea4829737e78544c61026871e14fc547257df59d11a57b3f81c",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}