{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2621c1fac4dac0c788ccaa90232d7c21825518c1cc8a18d4b58cb92b1df99cf5",
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}