UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QsbKzSX6NjYB25LEW9Gr0sBlsS3YMNO2QF/dfqOVpsw=' 
WHERE 
  key_id = '6993e33970e54e2e7aec3046b8f1540db8f46cfe9f8edef661a795824c4829e2' 
  AND (
    token = 'QsbKzSX6NjYB25LEW9Gr0sBlsS3YMNO2QF/dfqOVpsw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )