{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x462f7b04ab6c59456d4f18b8bfefe22be394d4fe79fd109abded032efc0587f7",
    "signature": "0xd8e7e7c6025026976b5cfa346c46ded9deb7a0062a829ae3fa9233bee06d5d8a1338ad637bd0abeff739e5cdb5391ab72d346e0b099ee05640c22e878b900b9b1c",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}