UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B6X2mMtsKPmY5Fa9DhtDR2cJf1vbBOlnwrweRq26co4=' 
WHERE 
  key_id = '861d3a667df06f9487d4f6fde675bdeeb2cd64c49c972e2b618a9756163c4c8a' 
  AND (
    token = 'B6X2mMtsKPmY5Fa9DhtDR2cJf1vbBOlnwrweRq26co4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034