{
  "manageEntity": {
    "action": "Save",
    "entityId": "311125865",
    "entityType": "Track",
    "nonce": "0xccc3679b16c2eb3d82cab03a1d7e72d200f1c5b5c73f33d7db4566cc5a97a97d",
    "signature": "0x6ec4d5806a47f230e4520ec16c2c493bf67683f906a537fd04c774338c9a00281d3de1043cffdd51478085cb63c51a7c24aaa40bfef13787ff18a690897e1d9c1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}