UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PL+vC5cS/XPK1Qpkyt9UMN0x+M91gG/B8OSiG0B1Z+o=' 
WHERE 
  key_id = '997b1f0185671e87124528c6a721bc0339ac2a42be0f337103dec3bc87306fe2' 
  AND (
    token = 'PL+vC5cS/XPK1Qpkyt9UMN0x+M91gG/B8OSiG0B1Z+o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )