{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227068227",
    "entityType": "User",
    "nonce": "0x4f322c4ff57db1e471ed4a5e85ae604c80d868cba058b5070367d609f223cba6",
    "signature": "0x94c4ed9ac5f74f9b9f95a2a77f1f97a382be9bf41bc4e470fc008339dba536c22b6aeb958180b0da0cffba1f6f12d88003b48d9ed20e1a6cbc298962ec1965be1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}