{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7ebf6b073ead1afa5d3342c3ac4ef3604d36915a83c1ec5c94092cc9cf2c73e1",
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}