{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x008c9c2397986b6dcbccdd94544f4b3911f8ec379a5705b17530e1cf652d3b51",
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    "signer": "0x81bAC68D47d9Cf2CC6cd77e5Ec80911be81af23B",
    "userId": "331018771"
  }
}