UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'flgIfI7JPZ1sqH8RYndZYfmFQOPv6Pdrogn4tPkjYbw=' 
WHERE 
  key_id = '9720b173986f68a56dc8f546c1ce053b7e75612564943f187a2b3b6be332c2e6' 
  AND (
    token = 'flgIfI7JPZ1sqH8RYndZYfmFQOPv6Pdrogn4tPkjYbw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )