{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x12f5d1c3a77590473668133676522c748d7548c794d28fa3c07ec9304037d3a7",
    "signature": "0x75bc9e0fc77b883c24f83c033ec8f5be0660dcb9b5ef3c9b93af5de099e5b16b75221500c2d75485b035af15b1300b871bcaf5f36628fcef432f5624ebfaf3e21c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}