{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1328797",
    "entityType": "User",
    "nonce": "0x1bc157cc1e109385a6507ad4f7e2b600296a8637507ba19cc8c297a930147fa7",
    "signature": "0x3563c3b3bebc481848619edbd8a6bec6f525f148019ffca95ba2a0dc3aa8a27641f21d253f17a4f5773339b126d6a09f5622f778cc503e002b7c6c2433c6bdc81b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}