{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbbed60cf3727c03a85b75e6b99511ed279ba979dcbdd270d988c403c22e59a2b",
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    "userId": "724161420"
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}