UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MRfccAlF4QAzsZV882r7bkt2P0yAtE9inslWrESsG6A=' 
WHERE 
  key_id = '49697389c5b600a370c6a284fb8d8a55e1f20590273c69b173e835e13d4e4697' 
  AND (
    token = 'MRfccAlF4QAzsZV882r7bkt2P0yAtE9inslWrESsG6A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )