{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2469",
    "entityType": "User",
    "nonce": "0x14a13faa83b55cda0c23b600faf26dc415260cd7276110b91b16e832fbc7ced1",
    "signature": "0xf21de325fd73ad4aff745eb956561c4f4067a20123c26689a8e825a4a328aa167c4849a732b2f29ad23aa9f706dd8a52ec1b1ce19ab9a0d1ae48f10f5800dedc1c",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}