{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217600",
    "entityType": "User",
    "nonce": "0xd69a92125ef6833aff3ec85abde97ccbd86ec8859eeefdf8222fcc648320ff1a",
    "signature": "0x4c468aa1771be763db3ac403dc03dc22d5194006cbfab758053c7b8571f66435352271a0eaf32ac2c15f967007443ae94013ddbba6dd36b04c23208397798e521c",
    "signer": "0x9FA029c6E43fD9781215e024e9ae5802602Ed2Db",
    "userId": "738673571"
  }
}