{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9ef8389271fbc530cc8e68a86f59e57a4060e5999efe2e8392cd4d7f86d92e20",
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}