UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1UQjVxLptRENZLwPg91cryeoNWk65acD2HpuHgrk0w0=' 
WHERE 
  key_id = '6795753c909795fd780079a313fc9d5cbd9b3de22ff0c1dfd8e7a74fb836bb9b' 
  AND (
    token = '1UQjVxLptRENZLwPg91cryeoNWk65acD2HpuHgrk0w0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )