UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MPRN0Chcgu3oWcDoyf1+RltZzp1m2vi5tEgH63+xJYw=' 
WHERE 
  key_id = '38b815303e4762c262fc61911799f2816a4266cf4af74a21eb4a3403c7a159b0' 
  AND (
    token = 'MPRN0Chcgu3oWcDoyf1+RltZzp1m2vi5tEgH63+xJYw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )