{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x519a9994d849196dfcf008fc7f39228c0441d0998c1efb6c8504809f279853bf",
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}