{
  "manageEntity": {
    "action": "Save",
    "entityId": "882518118",
    "entityType": "Track",
    "nonce": "0xfce625b006bbfb4c37a09487a2288d59f2f490426a6a25edd15bfe8dda8f45bf",
    "signature": "0x1c5822bc25b0872fccb3f12e35adecb23d1115446876a348441cd10c6204615055693b1e9c6eb23847efe58ccb16dffcbf9d6d97f2f241263ee567ba3c9003191b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}