UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'msxQ3c8Uro4gEIVb7n8TALziV53CmkRBDiiZnln6X/o=' 
WHERE 
  key_id = '83c6ebdee9d7e0b195ac37906447c1df96d3531318affea43f45658963755109' 
  AND (
    token = 'msxQ3c8Uro4gEIVb7n8TALziV53CmkRBDiiZnln6X/o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00032