{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10678",
    "entityType": "User",
    "nonce": "0x44f6630be8346bec484a9aade01788b0525e80352dda2b18c224b9f7a499de2f",
    "signature": "0xc5ec74acd3a16979cc4d30170f29ba9a50b26eb39ba038f3ad7b69cc7ed283c37eda1a749cb0f8f6ab66b30f91054d9876bb4098c97c6fe735718e94d567dc5c1b",
    "signer": "0x14A55CAAD52a18f76025A94865ce06ED8A0Ea2cC",
    "userId": "653598798"
  }
}