UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'q/i2+xBO4RrWtl3udfgE9Xn1rcltn6Ai17jT1HDY/6A=' 
WHERE 
  key_id = '9a349b34702f963ee9e0cc8e035040f131b9a1b05f01ad07e6a1836c148767a9' 
  AND (
    token = 'q/i2+xBO4RrWtl3udfgE9Xn1rcltn6Ai17jT1HDY/6A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00026