{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5e6a53a0e95905f75feb1562ee819bed6944fa2d43c9f371aefc582284e7a3a7",
    "signature": "0x707b8e8a3768c0e6fb5afc98f98a9db81d95bb4e8b5ccd69075f1ab528df368b5065347fd3a507bff61c08e21dbc7e0bee45907f6f6f29aefb6bcb4438a032111b",
    "signer": "0x2327E5BD5371c76aCDbfC4BC4f52DB8ea8A57f18",
    "userId": "216278113"
  }
}