{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0x45af171c822d328a351d83068edbb426c354d7d8e42febcab4a7307000f60759",
    "signature": "0x1120f1232483714080f585749c8239fcf2f0f913d6d6bbdb8f85b319c278aa7b7a7041afc15a8fbde91e3611613aa6307d164203a2bca32a6d6af26adfe50f441c",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}