UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'maXJaS+fZvV/zdOqBhjdwuGU1zKKZuw5EWd7NQpdGC4=' 
WHERE 
  key_id = '956f27e6b7f256b71b62a19d287ecb262764bc86a1381fefc0a4ae11f894a9c2' 
  AND (
    token = 'maXJaS+fZvV/zdOqBhjdwuGU1zKKZuw5EWd7NQpdGC4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00024