UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u5uv3EEl57c+C/VGpgKM/x6yMJWBA5szhfmCSpdAGW4=' 
WHERE 
  key_id = 'f19a01c4535b21c621333f0b97108b8e750568790fd897493fed524250c058c4' 
  AND (
    token = 'u5uv3EEl57c+C/VGpgKM/x6yMJWBA5szhfmCSpdAGW4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )