{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf30e191be9ae95fe420c9b6a9bc8516a12e8311ad346d94bad5ee9ca1cdca451",
    "signature": "0x320921e9d361fe84c36729f9bf7b8037cf90c661ae35cc61eb36d949c6c377897a0e46ee0453ae5ee589c4120938e7e05b80dc9e89c37fb9e2d52759650afc491c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}