UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'C6HI/QvasdODBS6bsRvafXIjvdxA1bq1lPbpRQHNKoQ=' 
WHERE 
  key_id = 'ab1f1209ff91a6ccc769b419b9583c645ea10b42cffb8f60d8de940e41a93400' 
  AND (
    token = 'C6HI/QvasdODBS6bsRvafXIjvdxA1bq1lPbpRQHNKoQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029