UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'J8Qy+KDmRPEy8AqOgWQcz2VYwDq37XwetxtZx5SwHbo=' 
WHERE 
  key_id = 'af981838f348f5156c51d3428eb187c78404f7902364c7caab0491172a933973' 
  AND (
    token = 'J8Qy+KDmRPEy8AqOgWQcz2VYwDq37XwetxtZx5SwHbo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )