{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x40e8092d57b87acb3e69ed55c5a179bf59c8895e7c8c86bf4025a3ca206e9b51",
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}