UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k8ME56RRYTzSYJ0N/BTvm7hARIyB5gjR8PO6bflC2Aw=' 
WHERE 
  key_id = 'a7981c06c5929f708f140ca4dcffcde54ad94aca0fd22e75392651312d65d9e6' 
  AND (
    token = 'k8ME56RRYTzSYJ0N/BTvm7hARIyB5gjR8PO6bflC2Aw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )