UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uL1vnKmuDPijGI5BzIEHCQ6T0kFWelZPK7E4og/bXnc=' 
WHERE 
  key_id = '5843620529cd2bdfc8d6a7faf44ec561c3a08759e3fa0c927eb1d605642ccd34' 
  AND (
    token = 'uL1vnKmuDPijGI5BzIEHCQ6T0kFWelZPK7E4og/bXnc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )