UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Zh7AyZLYLrfNgjG9T3WeGM42ocV0yWKUUu0wbvEOao0=' 
WHERE 
  key_id = '75847f843c8b279a47c1e3301af529a1056d6d3c00fdcb1e6e52a1060b87a38f' 
  AND (
    token = 'Zh7AyZLYLrfNgjG9T3WeGM42ocV0yWKUUu0wbvEOao0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )