{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x98a1c0ca09bab5a9532a4bdff28a7e1c8442c420e5c630b731871fb878a9cbf9",
    "signature": "0xd901467de9af47ccfa76d3a24d7b29659d239e5eee53921c8c7cc61c4b4f656112546b7403bff67716e7e8e2d02b09e3a4f1d4515375c4b0e2345837d08748251c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}