{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843653281",
    "entityType": "User",
    "nonce": "0x0c82ee439a4a623f6979bad0f4a3086cb9352a23368a18640fc6d2d0eee0cb42",
    "signature": "0x37b05b0decc342e2bd0bfa52b4e00a35516a8f3b6470f3d45d7e8149289ada395fd977e63a58d20b67783ddfd3ef3d690fb5dc5b1cd9f0ecf9b1a45cd3952e191c",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}