{
  "manageEntity": {
    "action": "Save",
    "entityId": "547310",
    "entityType": "Track",
    "nonce": "0x3ec165c2841490612c09569446cf4b11c4c0059f7bf89dddd1e699dedd286f4b",
    "signature": "0x26c7800633338c995223b866bbfb69f705a95c5170c8d787039cef5b357585d9750e8685198d6b0bb281bf3903fb064eb95d0c9c4834f3d53f75f6964dd853c41b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}