{
  "manageEntity": {
    "action": "Save",
    "entityId": "1733933164",
    "entityType": "Track",
    "nonce": "0x9dedcd31cf1d38a2adc1c72ea5d1582ec1b1094f02b2cd80240217a03257ccdf",
    "signature": "0xe237bd4a3750aefd83a8a8df719a16e029c941a0d642ad99bc20d846dae975663db65b11c12202c35992323e6f51540e921df267d1f709dc6c8f9f74caf89ca91b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}