{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe400e9d173afe4e6a8d4458ad2a100905a30b2d7d980e3ce8f2094b918456995",
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}