UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a6Q0Hwj9wK04eMAsY3FGGudntYCHoTWjm5HQqGZqd38=' 
WHERE 
  key_id = '4e00b40e50ec25b2077ab6783fc74c7c990c6160424c67578594280bd7335071' 
  AND (
    token = 'a6Q0Hwj9wK04eMAsY3FGGudntYCHoTWjm5HQqGZqd38=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )