{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x64cb82ddaace9c40581838a5746c436fa00270f0be5b5a2e6fac0f4c7be5c0fc",
    "signature": "0xf5c4def87d14a50e10a398d7489d7bd11e0c1b36e2ec2e863d0b8c8a4d1828a00c1ed666e18e643dd6f9bd0ab876a1129ec62c3f5a6e05c295034d69ff5fa85b1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}