UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DvsaxpDi4rvZNlMFpMlqVwXTr0BFBqNsvWEISaJmRHY=' 
WHERE 
  key_id = '6d6ad575a9c06ee8921ba85d282e095e8600faf54b99b40b3f36b63e914ff4a8' 
  AND (
    token = 'DvsaxpDi4rvZNlMFpMlqVwXTr0BFBqNsvWEISaJmRHY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )