UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yl0QTRj3C4EiMEeAzMDwrrhAxRdMFZ/L7t0BgeAqyfk=' 
WHERE 
  key_id = 'a7694b470051f51c51abc39d20c02cfbfdbcab8425c27d4bf1001ea7928600b4' 
  AND (
    token = 'yl0QTRj3C4EiMEeAzMDwrrhAxRdMFZ/L7t0BgeAqyfk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00042