{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xaeb66e788eb64e46140191c2d8ab9ddfd4855260c86c4ef9f7d8d2fbeab6588e",
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}