UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ex9+O/GscpgVuW9rR6C/790Sg0Kv1zmyf7PDDYDdUTo=' 
WHERE 
  key_id = 'a51eb6358a27966985cd9e0950fafb19912f4cdb615b1251c970db617e709411' 
  AND (
    token = 'Ex9+O/GscpgVuW9rR6C/790Sg0Kv1zmyf7PDDYDdUTo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )