{
  "manageEntity": {
    "action": "Save",
    "entityId": "35327584",
    "entityType": "Track",
    "nonce": "1792290716200392356",
    "signature": "0x0bc6d3579df0cbd66a8bbc051d87a9158a029efe3f4ce71f82f0f0789d88a6f11c34c2cae1c0cc3b889f391d33ff7b2907007e72b93224085a55b91cfac1d7051b",
    "signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
    "userId": "329513359"
  }
}