{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x64b8d6b7bddae31b324170108290c0258623c55b37deeea85a3a22ed01b81aa1",
    "signature": "0x7a600d232aa2e4bef705c65bffd70cd48629b47ee4daf730480269e923a1d23c70535a8506fad599170ec63f020e8054b59abe994ff8c78c63be1037e35fb1041c",
    "signer": "0x099beeA211a5716C663De329438Edf6237439295",
    "userId": "250228655"
  }
}