{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104128629",
    "entityType": "User",
    "nonce": "0xb410759f4763874297b2dd0ef050011f958b3b9e8575bc197a042c280acea5e4",
    "signature": "0xc93ac75becbcc5aae887783ae82024dd2410abb4f5b9c1ab0be6127ed1fe8dce27361c0511b9caf6f7ba9907f5362a1671b98f1e460707595aa4d4378e76f7041b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}