UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'Rad913iLCP4T25wBknH9/EtdFfk1PkEE6Fyl3wuvlYs=' 
WHERE 
  key_id = 'c45a300f434d0bc8630d96433f922020bc783775df7a5fadf58910f3bccb2b4e' 
  AND (
    token = 'Rad913iLCP4T25wBknH9/EtdFfk1PkEE6Fyl3wuvlYs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )