{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0d093f8ae3f50b3597218fdb741a4f394cc1ec9d68cedb10262d3db5b4471a7b",
    "signature": "0xd5ba9389d82d81af48620583a647a1cb2814bf5f4e3bb5be757cefbdb74213e200d7ba3e9f8a47c8d450b69cd6e6e21894ce70a8c404d6357c8cc4320e51a6831c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}