UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zxC91s3EpqxrEWKRjujSRyybvyGi2QKeCkvMf3p06Ig=' 
WHERE 
  key_id = '820a06f85bb9a5d7fbb9ba8ec4256c8b422a6f4cdc2f51fbacbee0efdca6b490' 
  AND (
    token = 'zxC91s3EpqxrEWKRjujSRyybvyGi2QKeCkvMf3p06Ig=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )