{
  "manageEntity": {
    "action": "Save",
    "entityId": "1792079920",
    "entityType": "Track",
    "nonce": "0x77ef1c32f18e7ef2b6a822579d40c27bfa4173fdd1dc523967bc255c11c62e17",
    "signature": "0x6c6bd42c568617554892d1525a49fe6e40be2fd85e94e5ea734f70e96c09bd2f5c189b5cea2a94bb3612022dac53bee4d1948c90f95cfcb670beb2755f8f0bb91c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}