UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a4/KN0tFuZgsFMrz6P7o2NJjeQOlvWppDlYAb8RbNt0=' 
WHERE 
  key_id = '15a80a5af745b954d992f09bb1d2091081e3cd574432e6a97b2908b380637064' 
  AND (
    token = 'a4/KN0tFuZgsFMrz6P7o2NJjeQOlvWppDlYAb8RbNt0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )