{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x787bdc33900e38aaf345508f82e6a50f8bed9e22aec9735d62a9d39f60c3e7d2",
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}