UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RC0KAwbbdYLgitebAQ27C6bnRUo69sZXAGRkJ3K35DE=' 
WHERE 
  key_id = '790cebe6d3518cc45aef83fa86e9c20bf7cab84701d4681322cdd464669ebe0b' 
  AND (
    token = 'RC0KAwbbdYLgitebAQ27C6bnRUo69sZXAGRkJ3K35DE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )