{
  "manageEntity": {
    "action": "Save",
    "entityId": "550188979",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x22b62d4c77495c5026569ebaa1f0e632ff024e7dbd50f68f21d6054d484b9cfa",
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}