{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0x0f8c96e677539fbf3039cf12b1ca80dd7c2a0a17d2e50c0406b7344a52901ecd",
    "signature": "0xbf9203dcbf888446f5dfe475aa072c80ca863bd84a7ce46457402c1065c5042e1f69cd22930ed5e95a449052f84d2e54d4f8818e5eb457aaea6f03c41ea37a471b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}