{
  "manageEntity": {
    "action": "Save",
    "entityId": "101086",
    "entityType": "Track",
    "nonce": "0x658f0e5f9c789161628f83336649b6f52461cb0b9a0bb69c463e61413e0e862d",
    "signature": "0xc3ecbf8b7e50b182adf7ba3bf988c0d54f8466114dbae1d3d8136405a3aaed0d4ff7f8ddc1f051f3e0e65ecfdce3f027f2e70dabb880ce183ac6d62a8e2e9c7e1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}