UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ML1WygmIemQTUjpYqXghXiLtpoNj6pHnAn4i7NjPsws=' 
WHERE 
  key_id = '93a548f70df5315420d2bed92787e83f5247203fbd6f21d673751dd47245e30d' 
  AND (
    token = 'ML1WygmIemQTUjpYqXghXiLtpoNj6pHnAn4i7NjPsws=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )