UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CD55ecRiOXx1mVhpf5NrKgvg44WAJqibiNMuokJV3ts=' 
WHERE 
  key_id = '93e96f1f406af9cdd892624a11e163635afa4ae42c737885fcbc109f9a3fc7f1' 
  AND (
    token = 'CD55ecRiOXx1mVhpf5NrKgvg44WAJqibiNMuokJV3ts=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )