{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "731052685",
    "entityType": "User",
    "nonce": "0xd586b3acc33f1b979496ec5fc0a254929151d77d1f8bfedc83bcf59e191bdee7",
    "signature": "0x6e6c4293b25ddd8d34219246e5a890f8ae05d2f890d2620180f9d2a7199540e372ab95a2528f257d4ccbd4ed903dd77dd1e363c1d57b41364e6e689ef85d8d221c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}