{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396434",
    "entityType": "User",
    "nonce": "0x2898a7ad7f4ab6e87d223a7093f8e9ac29144f24e9bedee24b17110295f34852",
    "signature": "0x58af87442cfc2586c16778f20dba1d886d7dd56655e33b2699db0184a86077826326b06415c6f4225d241be1da0355f0f8b3d4e229d5072ce9eacff4730036171b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}