UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iwK7+ObIrCgxN7UCTge8HmYjPmhZv2xBv4nyijA+XSM=' 
WHERE 
  key_id = 'e390ff81ab5525ec1817855fce870faa883d61bc8e50a3dcdc03b9cb0164c47a' 
  AND (
    token = 'iwK7+ObIrCgxN7UCTge8HmYjPmhZv2xBv4nyijA+XSM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )