{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "391787",
    "entityType": "User",
    "nonce": "0x1d44646660405cf632d6f4e2d7c3fc5351863607e5d9674fdbbaa8e0eb331a21",
    "signature": "0x35f06ca6a747627c7e0240c1e46a909c1bd3211898371868b5fe7ecf0d889efc4543d167c0f7b774b774174cecc7eebf23204974d1988ea6415c4b34ceceec731c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}