UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n2dme+E7orA31/vDNiQAyEP2d5uYkqOpkNUwuC07I1w=' 
WHERE 
  key_id = '993c3b09d83a7fe024b009dcba8ac938d5fcf9fcde2d3894a7d13b966af3bf1f' 
  AND (
    token = 'n2dme+E7orA31/vDNiQAyEP2d5uYkqOpkNUwuC07I1w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )