{
  "manageEntity": {
    "action": "Save",
    "entityId": "26832339",
    "entityType": "Track",
    "nonce": "0xa5e973dd0f93a706e594349c14d6496286323c06b243ee32b439b12c7b789de2",
    "signature": "0x615932e4c5d2002a89e7449ac039f07d5127f6775fb603d9a77c45cef5c7e8042b4eb8a65aec0a2f9f12116e8ea1bdc749c58e903233accf29956226e55641ab1b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}