UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'JT51GWQqC21e3CGgJJwOvKmiaYMRXEQDmYnCdLg0BoE=' 
WHERE 
  key_id = 'e5df4598941a7a74a01291e368dc2779e345f30f73ce290f99e0bac475d84af4' 
  AND (
    token = 'JT51GWQqC21e3CGgJJwOvKmiaYMRXEQDmYnCdLg0BoE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )