{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdb66309e1d7f4b8c5b1ca717c03aee00299c3b49a0812e58c3d869286e0c2d36",
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    "signer": "0xa5Ca6c6a8CDe087d3F6DDc71f2745F9787FED97C",
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  }
}