{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4c399a5f203445e5c44e27beb6b6dda3055acc9127cbd50f21d0d3a4eae38d98",
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}