{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951886446",
    "entityType": "User",
    "nonce": "0xd6e43591e2b2e4079a239864f1f59ab9c85dba90fc79462eb4e0784417516fe5",
    "signature": "0x915bd550fcdd77a13f34cce5c9046a4d2692acbd3dd81c2cf73592fa5551c4c14769363c78f1edf3648c19b5f0ed96a27eeddcd13b12fb576e0e22a5faad8e7a1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}