{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x659092d3433ff70cf0a6d86c981669691bd8eff13e47bc4a59aaf0c81adce69f",
    "signature": "0xcfe00b2f75b9fc1801737d8485316085f839b697580c78477b5a4d606743ac314563ccdd0d7950bffd34261d1cc6072749ea9c9f64b80906fdf3567a4fc47c921c",
    "signer": "0xA83FA8A401905C883593C58b3fbb3a2BCa8bbB3e",
    "userId": "152794947"
  }
}