{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x85fe8eb883266d23b4f86f06858f22cf4da0f83b5eab443ad7f4499574cfb13f",
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    "userId": "154877188"
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}