{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x66630271640cf28595c7c28bf6e597c0076b6a5434ea4776d8f176fec16bab6d",
    "signature": "0x2f661d12301a97b9c3e911bca7ecbaf40831238a765918b9bbbb1a47e72d05191f1aa5a9d94a190796f448cac82107818977d4801c9858b500c116e1d3cfe2fb1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}