UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kU4CBJpvW7b33NICAIaBVbqDmpoIrrLrpazIe6CdJ08=' 
WHERE 
  key_id = '978fa9892048aaa7b696da3abb57792339bf4d090843ee2102310cc0882b6325' 
  AND (
    token = 'kU4CBJpvW7b33NICAIaBVbqDmpoIrrLrpazIe6CdJ08=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )