UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/T2VvwyQnBT3TGfLN7XRuHajRjJ98Em1UFQamrHnIz0=' 
WHERE 
  key_id = 'a6484b81ac12e55bbc338587be6059a7c0d8aff6989e1b251809f431f18d6687' 
  AND (
    token = '/T2VvwyQnBT3TGfLN7XRuHajRjJ98Em1UFQamrHnIz0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )