UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cGk4Qo1A+04NjbvavZZ7J6OnRBncu1jTiOmv2gf9jXc=' 
WHERE 
  key_id = '81c9fb1daee52ebded093e27968a12fadab32d7281f7f8009e00480d22dd7f77' 
  AND (
    token = 'cGk4Qo1A+04NjbvavZZ7J6OnRBncu1jTiOmv2gf9jXc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )