{
  "manageEntity": {
    "action": "Save",
    "entityId": "1980217025",
    "entityType": "Track",
    "nonce": "0x7c1f3101d638a7816ee65c319430238fc232ca25ab597b9d694c24dca6703c2e",
    "signature": "0x876e5b9af663c1471e2f67acbd96320fb8f1cc7c31827ac3bfab5a3968938d076c34b95432ede6da5fd2977be3a69d9d92bd450a7b294700a321f88ee9f954d51c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}