{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "477159921",
    "entityType": "User",
    "nonce": "0x4f253d51dbd56ccbba15d45760c261dc77f3d7db1e6f89aeb942b6d515c9abae",
    "signature": "0x3b9f280715917d0c773e1e59a547134cb64e19df397b91cef85fec9318dd314f32b3475c0b7c1a8e8250af71d48c1a23eaa2ade17811b377bf1f03505b37ac301c",
    "signer": "0x5a419547Efa7F5AF0F54d60B430cdAD34546AD7F",
    "userId": "461008548"
  }
}