{
  "manageEntity": {
    "action": "Save",
    "entityId": "1459117502",
    "entityType": "Track",
    "nonce": "0x14b95d52934dbe22a7d3d11c97c3dd426c047f5efac37798e398ffe8fb7d472e",
    "signature": "0x7078e17b25ed07063b0fdefffc10bd38813389f46f7a7240689499caf7c1c9d92d11b9d01e38b20650a13df3e6b616c6d7a6f275f341fb2c02fd64e8e8080b281c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}