{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x54f8f1200557a3158006dbe304ba02f617cd6093c04e903fbcd32f42be04c386",
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}