UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K/kNddLF9K7wfuyYni1CdHjsIdUK9Sx8ZzsFal6m+LY=' 
WHERE 
  key_id = '8b2a6083f4cb073355d81275c7e55061dcc3838c731749e535cf73c41c33db1f' 
  AND (
    token = 'K/kNddLF9K7wfuyYni1CdHjsIdUK9Sx8ZzsFal6m+LY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )