UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MGgm46yK48Y0Uuz+6kgBVsse9xd2DDFDmbdsFY/Na0M=' 
WHERE 
  key_id = 'e67e47efa2f790673672cd3952af500c58c1478c69b25af7677015ef89f8d5e1' 
  AND (
    token = 'MGgm46yK48Y0Uuz+6kgBVsse9xd2DDFDmbdsFY/Na0M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )