{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170302",
    "entityType": "User",
    "nonce": "0x4630bcc170dc52719c380f910de7ee4c45b6a773e2b2e3bcea81eb134cecd9b5",
    "signature": "0x74cf4ec5d42c142b2f3f595cbee100141a1349a079574382396240bf043f35cc786c771cad859af056514f64f686e887a36d0268f2afdef733658acecd1330581b",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}