{
  "manageEntity": {
    "action": "Save",
    "entityId": "232001164",
    "entityType": "Track",
    "nonce": "0x3f87e589391da5a89f7468464b3686eda56268f366f80e0677ccc08afabc46ec",
    "signature": "0x33c1182860b95f77d2cbd3f55d664c54f7a12cb3f3de27117d04ddd45774aa3238dbd9b48ead990698bde67d4ab363916bc3c69353f7d95086bd376653fa0e961c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}