{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa621f43626f4d285191a05940e64c469a96bda8c3020628a165b38658d1723b6",
    "signature": "0x9a623c78e8a07c72246676b10e9b8f7ad719638d9a559a6c7092561eb6c6072a12f3db1616c1bb3bed4f6550163920144a2e9408d77577bc6393d418c0c377601c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}