UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U/rG40bxw9QClonDUFQYdDK7sKs+NCS71rqFui3WNjo=' 
WHERE 
  key_id = '7c61da8aa385d8907618b26c6e75d6103f0d0368c034fb95fa17e2af7ad78206' 
  AND (
    token = 'U/rG40bxw9QClonDUFQYdDK7sKs+NCS71rqFui3WNjo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )