{
  "manageEntity": {
    "action": "Save",
    "entityId": "241026310",
    "entityType": "Track",
    "nonce": "0x35fe30b57595034c13f1a7380342860ab6be4ab7638ef06f6e8dd4e99a544cd5",
    "signature": "0xc284d496943f10accde51c24580061ffad5b52fc92a40536a94090ea6f6a17a149c21af0cf3ddaf388267bf2a7349ff3d9aafc0d091bf4f02b2cd466a8b16eb51b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}