UPDATE 
  cscart_aprillock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hNxFQmxtAKyohlfdOwzcXfv5keMmZ0apaPytTnjLYPo=' 
WHERE 
  key_id = '249a2dc872207710dff42a2b371ad8dae247594c4512af1256908493de50d549' 
  AND (
    token = 'hNxFQmxtAKyohlfdOwzcXfv5keMmZ0apaPytTnjLYPo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029