{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215018974",
    "entityType": "User",
    "nonce": "0xecafdcd110a4638575ef0f17e1213812bdc1dbc46e06f30741f8fcec8e0b8137",
    "signature": "0x2b85c7a59c0362008effc9188285ec4210e217e692fb4fb8b1e5ccde70b6254a669e6d8701ef53abdc41a4a422432726ff4b311ad508822b4b478631714661581b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}