{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "874277249",
    "entityType": "User",
    "nonce": "0xd578849c28b25afd67ff0904b24ebf2dcdcc27939c9e8cf062f8b461433ef983",
    "signature": "0x67047b4abe443d3b55461b8b877d65c4ed44434fdc4fedcad94f2471209335ce266a512850480dc5ab9338c7ce07227f7fa9b7dcf09029b59f8f7f4dfc77426f1c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}