UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PIgzRJK5uiuLKKyFXZm2fB2vrDQO3XIw04Fq/D+u7Co=' 
WHERE 
  key_id = '8081c8656a39483fff6d340b4611e6f0f9433f69a99012e904d5714c1d85278a' 
  AND (
    token = 'PIgzRJK5uiuLKKyFXZm2fB2vrDQO3XIw04Fq/D+u7Co=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00053