{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422886157",
    "entityType": "User",
    "nonce": "0xb966c1e4c699737871b22396bb40b151e5b9b8d9dc404b95a4714c53055d543d",
    "signature": "0x512a1baedaa00c685ee3dd5398662b6ccc957aacc374b0c4cb11424663e256f362965f203192f39c7f6d67d99327ae816f605c0d5efd624f4aa4b45b11bdcf191b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}