UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/X8GTilgSKim4Nszr9EcfFpQwoFy8Ofq6E4dG/rwlbY=' 
WHERE 
  key_id = '5d3ac209101f47c8b736850235ab7bd8491a6cd8e5a1245df71b3e9c69df5f6b' 
  AND (
    token = '/X8GTilgSKim4Nszr9EcfFpQwoFy8Ofq6E4dG/rwlbY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00022