UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '48Ow7uyG1hSlVbvvBUkvxefNE6jz2ZfLLcoYpp6KOSg=' 
WHERE 
  key_id = '818a22d944fd70587fa20066e44867f82eb38e54de96fc1e9d8f391927dda1a6' 
  AND (
    token = '48Ow7uyG1hSlVbvvBUkvxefNE6jz2ZfLLcoYpp6KOSg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )