{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xecb845dfd437c52ab18921703f6f31f36cc0f1edb3823cd54a71a16528e85f84",
    "signature": "0xac49e9f5f76ab5edb78a2fa104c14d7041d90aa59ff60edd183dbfa7290448a2213769d7fea0029b88149fec08f451ad9ed5c25b8bcbd603059b39e8d55e77c91b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}