{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0x84e09e592e10ca8cbe4d7ae8a256e14d73393e8bf6a2e3a3f714d916e518c3fb",
    "signature": "0xcec64870dcc453f0d79f68b6c84af2fb736580a369646bd00a590c45bdbcf47e1b2a7ee1d704600d8237d54231ffe9f2550a3db6a6bfd04e41d67d27c1255d351b",
    "signer": "0x45f053EE6d99e48800FdabfC3da995B364e9dA54",
    "userId": "628434403"
  }
}