UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SfrbDk98kdf2ZCLec1RIxaelIud3EV0oWr+Fx0/pdkU=' 
WHERE 
  key_id = '30b2dd6a8163429831cd5b88249359184d083c2c08682e1769021344122797d6' 
  AND (
    token = 'SfrbDk98kdf2ZCLec1RIxaelIud3EV0oWr+Fx0/pdkU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )