{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x6a82d03b403665c9eb6f60ab8df9d89d552ed4c2f08ed1367e3eb67caa447854",
    "signature": "0xdbc139739477d0205d6bbd61d39ab6e83a23e8db53730c254a18c7b9340693156dcd96edc2c38dcc0bfd2ec0306800f95206ab5d1abbaf86d0004f58b6be86901b",
    "signer": "0x58eE21bfFe569da412DF67281f3fD403a5f2F8F6",
    "userId": "764092920"
  }
}