{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x773064ae02da40331b1b8015c9f5d5d91ae6766047617909532cefdfed4bb4f5",
    "signature": "0xd2f2c71cb9bea79066cb4984c6258f5f7ecf98aff7cbe7812530642d0cf37dfd33d2dfb5acf3199a9e293c4089a16c1aa675cf0e67f9814fc9d819711af8301e1c",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}