UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6L515sqcl5OgP+S41YUwtdCS3t3O7b+saEen0JOAPYc=' 
WHERE 
  key_id = '840f869fa8423a719b9a9ed927eabb56501e49d479a86bde019fb6a53f599742' 
  AND (
    token = '6L515sqcl5OgP+S41YUwtdCS3t3O7b+saEen0JOAPYc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )