UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uDKrh197TyJ2CFZYd5751+0tgEiGoNo1gimsMGS3xzc=' 
WHERE 
  key_id = '31b845db31bdd8eed80f8de5da447a384b5f89e5c030831ddc8d3b89d7ad8146' 
  AND (
    token = 'uDKrh197TyJ2CFZYd5751+0tgEiGoNo1gimsMGS3xzc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034