UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Au8WGohMnHhrLEU9UNZ0fz9THpODb2s0frTEORP98ZA=' 
WHERE 
  key_id = '937342315bd15c6e41a7b5b97092cbdeaf736dd767b561b5520c943ac0a6a624' 
  AND (
    token = 'Au8WGohMnHhrLEU9UNZ0fz9THpODb2s0frTEORP98ZA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )