UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GEM6FG5Jtw72IbzC1vwhD+L8rYye8DsNaxJCsMlYOMU=' 
WHERE 
  key_id = '81b98162d4a41882e0751dbdab01b2ae58482ed3e687981f541234bbcbadb599' 
  AND (
    token = 'GEM6FG5Jtw72IbzC1vwhD+L8rYye8DsNaxJCsMlYOMU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )