{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x449e7faa9ab7192ef9be88dca33753a59d7582cbe6f2ccd0ec1d87433542de8c",
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}