{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x90a5eada0c1591efc680d17598ff0a5747ce9b3a03d9df7dd754827cf41bf69b",
    "signature": "0x3c6c49e2b3f572e02ea88b2a588fdbbf3354f2e6103c93b6d313a86374abc0b0023158ed2b2e64281b60b1192db7e1a38d05cf7024403da4f9fc3343aa5cb27c1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}