{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x103fc61364e84e1696187bc8320886c764188513cfec6bbb27a1b3beef12cc04",
    "signature": "0xd23d2d8a8c3156c516f566885fad7606fe9368abb62c3f453edfad948fa3c58c0e4c481346cda5dd07e344ea7b6635c47fb9c72b73421c6091ae417e7f3175bd1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}