{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1322149",
    "entityType": "User",
    "nonce": "0x782cb0ac0a21eb5f3abc88c7ac3bd45769c8544df68742d7001abfee1d9251e9",
    "signature": "0xe7459c5ec8b4457f1ae284cbfb49b9895eca1b5b91944378b501eef6f6c68f984b513a5d32c530b058a5b91f66a2e1d2f053c1c15083b311fb1d8abb9b1861741c",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}