{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0x6396d6ad1cdae78d448b296ca00495556a3667ec212527d9552a5893cc15a7e5",
    "signature": "0x44335101cf1fcc02bea6d04f23796eba777d9f24d6d0b7dab960b70ae298c4625b8c98864e6cf8e74313abf9d93b02e6adde04abe257f6d850110ff45f48f86f1c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}