UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KDUXh42T/w6m5YOJpT3oQjzF0Y4j3H6TuvcszZ/Kqqc=' 
WHERE 
  key_id = '51f818580f54df859af4c62624f74ec8d9d08025aa0a9ef2a500b63349f6d903' 
  AND (
    token = 'KDUXh42T/w6m5YOJpT3oQjzF0Y4j3H6TuvcszZ/Kqqc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )