UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'xqWwVVNZ5ubm3cKEWK6cE8RH5rKSjaEYqY0qkqwqwBE=' 
WHERE 
  key_id = '856a76ed5a775da8f0fd35c850d80785c86b1b8e34f8cf34ead64db83b20c863' 
  AND (
    token = 'xqWwVVNZ5ubm3cKEWK6cE8RH5rKSjaEYqY0qkqwqwBE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )