{
  "manageEntity": {
    "action": "Save",
    "entityId": "1432315323",
    "entityType": "Track",
    "nonce": "0x11791cddb0a4c046482ee130128d37ff7375c6a50d014ac12246bd398662fea2",
    "signature": "0x5d4e5a237b618c6f65bd1361d705fc1d8a40f98cdcef30316592b8c68ba470687a1f43e923263532d9ad9521b36e0824ac6845bdfc5b849ec46353b7b53624f41b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}