{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5d53e3f597d5b95d9b6a505360e48a64b8b070df9d40973f4cf3acadaabbd9e8",
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}