{
  "manageEntity": {
    "action": "Save",
    "entityId": "835720700",
    "entityType": "Track",
    "nonce": "0x84ccb24d0aa92be19586e35c74c652d5eb5530fc6932038e77143b57c581f34c",
    "signature": "0x34c0796ad32f55453b74319fe2d5aa6b6043331e26e8547fb30efbfdbd5f62885c2a59349c17212ed017c9eb6025f0d9d3b809ffe3ea011e77ce3c0482d6eb961b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}