UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RM7II2pDaBLc7zwwaqjdH9v08qMtwUfr9O+tF9ebWqo=' 
WHERE 
  key_id = '6d83773d13bf79676cca49663c221584c587cba8ace1506ee7338634d3ebc951' 
  AND (
    token = 'RM7II2pDaBLc7zwwaqjdH9v08qMtwUfr9O+tF9ebWqo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )