UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U3p0G/EKbAClF5lkcMwW+RPoTeVjZCvcXX0Nzsov3pw=' 
WHERE 
  key_id = '4896ef78741e575dd9e3200101e9fdd22ccca97fa05c93d21e07185a045de380' 
  AND (
    token = 'U3p0G/EKbAClF5lkcMwW+RPoTeVjZCvcXX0Nzsov3pw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )