{
  "manageEntity": {
    "action": "Save",
    "entityId": "1037710512",
    "entityType": "Track",
    "nonce": "0x0cc261182cfe7beae701c6eaafc5d5e429523a2f64f8174d5cd2f6d4492ebece",
    "signature": "0x45eb8d9ca5eff1c9752badb392632562f3bb9f4ede195d9c8ddeb0eb54fb00b72c80634c7376788d553f14ca2e4182e3a02734a79ae18c5a76d8749e748d90671c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}