{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381571423",
    "entityType": "User",
    "nonce": "0xf8c947cae9c89d56d3be18052b90be4a100dee42943557215e05835e1b6fa3bb",
    "signature": "0x70cd594079cd3a63b21936c679a01aecf1963cd4071e47b8c03c8351e32329b21b9e2e953b0a25bf0bce340dd8dbd5a9728717cb56b14f81987142f3ff23c8231b",
    "signer": "0x7CDA77E08CecB6DBD20490207A731143FC007CA7",
    "userId": "8550967"
  }
}