{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb8692769541aa80ad7f606947922aadfb7be05f63bc83df0854b16159e8b7b0e",
    "signature": "0xf8763394825ee1ff4a234c5c2fd9abfa4a313b20ffae8c0ff61a3fbfca09d8bb1f658646e13d9498d5102ee5e77f11098da8d7303186d6ec67d81cddcad8f3131c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}