{
  "manageEntity": {
    "action": "Save",
    "entityId": "1011437188",
    "entityType": "Track",
    "nonce": "0x4fc66bfd4bb48896d65de23fc1e8a81aa990586049322b8291a76069d826eafa",
    "signature": "0x710392301cc7fca37ca23a08cd0b1a181204533d13540390b8c9eb4ed315c41c3a59e55a4acf50b5e1a72b3459468a7f5ab7f45185897eb79368c6f5b518232b1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}