{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3a4dd831a0523bf9a10d412353b1029dac46cf95ca5b9e82216dcc88364193c7",
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    "signer": "0xEc546C3d3ceA644cc0aA21232940466A1E6780F4",
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  }
}