{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xb45efc2cd1a0f56034130c778448e9ed9ca53740cfdd325577cc1f390b825a48",
    "signature": "0xd4ff510cd38b1b884726492de6a094473f7dca3714a82df7e80c17c0501bf0ae441b367f5b9f21adcedfe54dc78b5dd18d9855a6bf3900818fd5c67e798af6841b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}