{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7372489e5d615c00d741d7b6d68fe15cf496bc694e6a1c3b88a00620b6c4a770",
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}