{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4dca60906b3fa33b30bb4596937e4fa93c65faf2008ede4ace2b4e35e19c5294",
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}