{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5ae3e9b1871573c9a4f384cb4c3dc2f3a56cf3357b4735f5c3213caa67b6ccc8",
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}