UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Pcp91IRZ8NC9eYSXhgkwN2Gah7PbRjfAWCBp/1sRD/Q=' 
WHERE 
  key_id = '50a798f6f72cbaea13c59b0ecfa688324d0a5474b92165657bc146f348b8ca09' 
  AND (
    token = 'Pcp91IRZ8NC9eYSXhgkwN2Gah7PbRjfAWCBp/1sRD/Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )