{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x75422b4b752883f928daf8dcf8beffbadbdfcbaed1556d044c9463a2cc0e4644",
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    "signer": "0xf6c9943016137F3054658e7E14F51B6d271aC325",
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  }
}