UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GR51445tFCSdwGIrXhAMbfTJjSh+bltdm/GXD7vDi6w=' 
WHERE 
  key_id = '597ad0c2c20204a0e16bb003a04408aa3e492ab253486ff29ab2cf049ed93510' 
  AND (
    token = 'GR51445tFCSdwGIrXhAMbfTJjSh+bltdm/GXD7vDi6w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )