UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dHn095SHPZE6P4n3YfZ6nvlo1qnluX1/JY04PO2d+AU=' 
WHERE 
  key_id = '852a0d311abf219160267c7a0b1dd76afbd961b8c83e73ec937005fe49e4958d' 
  AND (
    token = 'dHn095SHPZE6P4n3YfZ6nvlo1qnluX1/JY04PO2d+AU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )