UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DjbMCNH1wNySBOqBHOW5A3AbOriag+KgH1ut5xYoqGE=' 
WHERE 
  key_id = '5046ae47a529f6dbc27eedce5fc72be626ae5a84d098472a86233a0f1a409b8b' 
  AND (
    token = 'DjbMCNH1wNySBOqBHOW5A3AbOriag+KgH1ut5xYoqGE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )