{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xad218f490bc21ee8916be611d4287a7708646997c057bc5613b601de95fa0249",
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    "signer": "0x6bdeB16A0EEfc2a621Ab08bF415568Ca273a4A53",
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  }
}