{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x19d021acf81facd8ec305688a2b8227699357e237e75b72dfd799950a81a967f",
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    "signer": "0xd52cb63aad2554Bb3d59Feb0b8AB033b6c368c3D",
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  }
}