UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zNBldhVeh9Nb6x2gQ58yqa5wmCGR1jvG6S71cklm0/g=' 
WHERE 
  key_id = '55278dba18a93eab6cd4d4b8b3bd6f9854817191e88de84363dbef01a7821587' 
  AND (
    token = 'zNBldhVeh9Nb6x2gQ58yqa5wmCGR1jvG6S71cklm0/g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )