UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a/VMioahDULi6+D/sZP31NcgbS0qJkesdH68nDJ0tZY=' 
WHERE 
  key_id = '75f1ef643c7d6ae29f3e6b2eb1fafe2cfd520f123e633f066e412ec3c75d8c9b' 
  AND (
    token = 'a/VMioahDULi6+D/sZP31NcgbS0qJkesdH68nDJ0tZY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )