UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EuZ2SdTco75doKd0tORwJ4m8HCU4LzpT52WQYv6r+As=' 
WHERE 
  key_id = '938ca379de7e6c0d627cf6bb79e20593d3bbba7e516e8888d547295d405f3463' 
  AND (
    token = 'EuZ2SdTco75doKd0tORwJ4m8HCU4LzpT52WQYv6r+As=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )