UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tekrnOxF8wix836BLV8lRQ4SBLRXY7RsamAtwiFNiqY=' 
WHERE 
  key_id = '1b644d7c6581cd251e43bafd8696b9413836d07d49deb1a55dedc43be021f9db' 
  AND (
    token = 'tekrnOxF8wix836BLV8lRQ4SBLRXY7RsamAtwiFNiqY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )