UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N48SBqhyok7lU81rHtp0fzopNShCzEiySzZMju8PcLc=' 
WHERE 
  key_id = '6e1dfede9b6f80bcc0bba70f57707b8ae43be14ec1f79ba154568a80990f9fc3' 
  AND (
    token = 'N48SBqhyok7lU81rHtp0fzopNShCzEiySzZMju8PcLc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00038