UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Rx4qP+/RKWfh4Eyvcfppb+KpnzAGZTC4/Da49L7gqfk=' 
WHERE 
  key_id = 'a800237cfc507860c70b8cf54602f21c3c83908eafae2875967577218f0a003f' 
  AND (
    token = 'Rx4qP+/RKWfh4Eyvcfppb+KpnzAGZTC4/Da49L7gqfk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00028