{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3708c5ad343415f751c65285519f9b19dadb5d6ba4c923066e60788a92e5bcb5",
    "signature": "0x0230d970d19dee0afa6564746a06ad5f7ff8ec6d2a17f31a7236ee94172ff25a7fd4f5409ed685ea716b357445cd5ed1c040cc6420c489fac70c5e3fc200d1e21c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}