UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k2e57kf97WvifIcgWxCV+J5lgpm9CX37Y6uC37RBIxo=' 
WHERE 
  key_id = '1b69b3383987d57863e0a0708ba8ef38155b540cb51cc37775129bb0876a7d83' 
  AND (
    token = 'k2e57kf97WvifIcgWxCV+J5lgpm9CX37Y6uC37RBIxo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )