UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '93AklwGXilf7bCr26ynJPLn4RXKa0JDBL2da02X2A2A=' 
WHERE 
  key_id = '940dc81c5a9724bc382a887440b5244d833ce60b93c272f244363c9c54f25b15' 
  AND (
    token = '93AklwGXilf7bCr26ynJPLn4RXKa0JDBL2da02X2A2A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )