{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x48b541103dba3391f4bc88b44fef5489167b9f0f5f949c4c6d7a140a42e5de3e",
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}