UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'emPBGALXqMaIHA+vPcshVgrbpGlW/WnbrBkCCprEoaQ=' 
WHERE 
  key_id = '31b14f685af51886bbcce3d19b3f30b3de91f16829256dc999b5430d0b502f14' 
  AND (
    token = 'emPBGALXqMaIHA+vPcshVgrbpGlW/WnbrBkCCprEoaQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )