{
  "manageEntity": {
    "action": "Save",
    "entityId": "1717183704",
    "entityType": "Track",
    "nonce": "0xafc6e9e4481e00e0d88033d061c39296af8f427bea9c9db27b331e935625c998",
    "signature": "0x9666602aa48b577cf3862ec360ef87e1f0bd14f9d85cc548ea04a528afc6048420f21c5204b412bfd32320386cbc33313ec7a8aa8701117ecc4dd8b57cda63fd1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}