{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "185302",
    "entityType": "User",
    "nonce": "0x8fdd43ec3569f6f4e156e8d5b32226f25d6874ba2f20c60ab14ba3f95dcfe4ca",
    "signature": "0x8f3da7a635f7b6980bbaa16a9b5404d7f15625af42da3a64a81b224c8c3b73621ae85761ee7711e5176a1cbdb2915708ca24a771bace00a990ea51a6002474691c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}