{
  "manageEntity": {
    "action": "Save",
    "entityId": "1098089584",
    "entityType": "Track",
    "nonce": "0x5beda0e82b0a2873c28ae4b06347afd64f2ad73280499101eaedd5e2aed1e98b",
    "signature": "0x3059210e89fd7b18d26f06de99235d5ae8d854485ad5d9e4e6fd954e48c86bf637d918cb8d09ed3745694d736e7f24fa743749680bbbe80411c6e719470fee471c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}