{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5a3071123268104c95f7c56c23d24fdc69ae0265b01e670a36c5f47a9bd8e03f",
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}