{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9580f093f674105acef2a429a7c9c24d82f1525f4951818a7730d0551c10fca0",
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}