{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6c9ab51741fbe126a0b50e3bbc7828b0958143b03f4aef54c55b3e88bd868d84",
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}