{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x5c177b346981d26105d6a68521fd0cb0c4c3e9e94f5aa99cdda6c3fb02751142",
    "signature": "0x078a3c98db96a64b4f81f1e61de400fb2d5acbd4a6264ba7f1c37afb34674bef3dff9bc16fc4afbae95f48a256e14a32d83784f481ef6d2216fcf849bd0ae1691c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}