UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+m18F9uteiZY2eBgSrLBzyylWyojzopZ5Iyu1gkbB8s=' 
WHERE 
  key_id = 'b50e4cee492c76b8d7ec580e25f00083188c7804c92421b1360c6be5de6344a5' 
  AND (
    token = '+m18F9uteiZY2eBgSrLBzyylWyojzopZ5Iyu1gkbB8s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )