{
  "manageEntity": {
    "action": "Save",
    "entityId": "1075835",
    "entityType": "Track",
    "nonce": "0x76d4f8592fd4bfb7de302207465f8d316d26b5a1c28dfc29a824ad7a333de718",
    "signature": "0x277247512085f069d6069c8a2ba6bb9ba240ed238c99efb0a499fe07e7601d5e526ab3f867d7c823603d75a88f88e38f99c6708d74530c97f4e9de8a1e1d20171c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}