UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6lEyr9Q6X7cKlFVWt+9+0PkMGuTItlDC54nRT+1HD3c=' 
WHERE 
  key_id = 'c6896e96f9d0a551905c0053f9eac83b10137b4c05f1a4015ccd587cdbe9cbde' 
  AND (
    token = '6lEyr9Q6X7cKlFVWt+9+0PkMGuTItlDC54nRT+1HD3c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )