{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xb63c91893c3ea280669f379bcca3e50a89fabcbd56fe181caf96f642795eb3e9",
    "signature": "0x06381b8dd2089e455d9441a3c278774678c9e047db89de2da90103299db1ea920cd7de6ebbdf26b38a746c7ac5e66460faccaf3c884399e1bcfe7a0a3a8d3c031b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}