UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R57bJn/XWnWjHbiOK/JqMdO75IN47gIatpMAri5pyDg=' 
WHERE 
  key_id = '2a51a3cf3e0a525784d049c2000194d711d489aa2e6a2e73f3105967bae6fad1' 
  AND (
    token = 'R57bJn/XWnWjHbiOK/JqMdO75IN47gIatpMAri5pyDg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00056