{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x12e154c15baad4488cca70b4804f8b6ed3002a660c8186ae7fde1793cf77f723",
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}