{
  "manageEntity": {
    "action": "Save",
    "entityId": "550188979",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf3a707216fa2602c148b0edb838f2f5ca118234a9a66a72269419026fff8b0a6",
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}