{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x70b66e4c5a3f965db3120c9c3eb978f41dda151889f3669b502ef4185ae86a05",
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    "signer": "0xfc7064Ac6bb1bFe42B00EEE14298d29bEC53611F",
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}