{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632918751",
    "entityType": "User",
    "nonce": "0x1b0d39f0bf4ab1a09401b5c1313a11e024f05a020b99da0d4b7766c1edc17623",
    "signature": "0xffe45bc5cb4d223c4cdddaa01dd47c43b83ef1f1da367130b7000e735424732076d169e6feb02b30eb43477cda7c0b03594d88a635aaef865746b72f4307636a1b",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}