UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UoUH0B5aKnAa6bZnvopCIqErCNsrpfQ1fred2HCUuaI=' 
WHERE 
  key_id = '6b15884de2cf7a8fad4de7dfa4c44e899818016da6e6e2dd131447332704357d' 
  AND (
    token = 'UoUH0B5aKnAa6bZnvopCIqErCNsrpfQ1fred2HCUuaI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )