UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zzT7gqmIt6wczzjmvkNPZKMWkpmOtadRMEc6n7zmfpE=' 
WHERE 
  key_id = '6e3e58567a31ac0e23a572914748788f5b3643bb1cf311bc05c447463b84593d' 
  AND (
    token = 'zzT7gqmIt6wczzjmvkNPZKMWkpmOtadRMEc6n7zmfpE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )