UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ECQ0eEEsU57rOGklDjkGxVDC9MpDkt51s7e+Hdb9u/w=' 
WHERE 
  key_id = 'b989522c27e8e8a6414417909e345769996b2d8e42bbf25e29bbe8a58cdd9e57' 
  AND (
    token = 'ECQ0eEEsU57rOGklDjkGxVDC9MpDkt51s7e+Hdb9u/w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029