{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "807456451",
    "entityType": "User",
    "nonce": "0xb9a1fa551c0297f6dfd697bc04df7c63bc8c7826e814f9cbf49d44274c020a7c",
    "signature": "0x2af141fb262a9f75971799b15341f6f972fd87e3fc78331b05c112df8e91c6fc08f9f64ee35de4e02bf5890992175aa97913d0520a02e8e957ac98c0d3aec33b1c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}