{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe428a128d9e971d2b49e498a0b9b41fdf7a32de832b488d5ac8e89ca60cae0b0",
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}