{
  "manageEntity": {
    "action": "Save",
    "entityId": "2130378192",
    "entityType": "Track",
    "nonce": "0xf5592ca9980ff9bf74cfcd99542086783f8c77c5f1e757dcf6cfe4cac08b79b3",
    "signature": "0x671d2b6836f7e9fea74433a0260e2846756822fece081e85613f67bea2ff53a4102a0018ccd784faac4fa518bb509ed2c2d78c4b4c53f9a28ae9f13d18ee22c31c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}