{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6be92f6f90f2dc1a5cca7f738aad2852932d01539fb44d9fccae04b4607b759f",
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    "userId": "187601416"
  }
}