{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa73f93b49396e50da1775970f6c30baf00c1ccdb0e6d2e7b354cd2889eb3cf04",
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}