{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x13848fb2d15808c971b5e9852198501df8a8b6d2b5270e0bbfced77b7d8bfd60",
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}