UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/mkqTJ88e7p8tXfdN1qDLEqwThnQG7P5CHwTZa5S2Ig=' 
WHERE 
  key_id = '8355f5d45fb36b8da4abe2044d50d30321371e38e775adec2f05297e7acd6600' 
  AND (
    token = '/mkqTJ88e7p8tXfdN1qDLEqwThnQG7P5CHwTZa5S2Ig=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )