{
  "manageEntity": {
    "action": "Save",
    "entityId": "1017534214",
    "entityType": "Track",
    "nonce": "0xa87d349db8aecaa012613d8b66e1778ee7242293552983ea4848e1e4db739fee",
    "signature": "0xbd453468f490368cd6b30ba8003e59dace3ebcef80a82db9b800e33b1226bee31db279291c3d6ed8b627faee17d77d5eaa8bae44cd972265d21ba9729fdc09671b",
    "signer": "0x8efe8c82bCa7362435ebe196046D5A864eE785df",
    "userId": "906663740"
  }
}