{
  "manageEntity": {
    "action": "Save",
    "entityId": "665555769",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2ac3b9a2719b434be4c11753b08e7c3c7b38036a465fd4741576dc1a87e9bc90",
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}