UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Oy7Z+TQtCyAhNvgZq4EU4siJWZomkuj9lDe0vtnfs60=' 
WHERE 
  key_id = '86d51c7649608b719ed946148486036808a3267e225bf505ce4047519fde7390' 
  AND (
    token = 'Oy7Z+TQtCyAhNvgZq4EU4siJWZomkuj9lDe0vtnfs60=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )