UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PwNeRFiZTPLwyrHc6QljcX14qa9VMkX+VQXEbxH+sVc=' 
WHERE 
  key_id = 'ff481d59207b08d46ad555694ebfd2bfd29b81009f7250aa485fc1006b769344' 
  AND (
    token = 'PwNeRFiZTPLwyrHc6QljcX14qa9VMkX+VQXEbxH+sVc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )