{
  "manageEntity": {
    "action": "Save",
    "entityId": "1115833986",
    "entityType": "Track",
    "nonce": "0xb97a4d01d955b5b6b4709d557cac441d01a7765fd803139bf2135d42b65bb04b",
    "signature": "0xba8add3550c3da1216c11594551350eff829bb06559727771cb8b89e00eeede6782465ed1cf4baf07cd9f1a443bb1fdfca7a5ca55c6006e68c4656f79f8dab641b",
    "signer": "0xF886D10824DDa867eb89ACd60EAF44D01F1B0E8f",
    "userId": "381084983"
  }
}