{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x58e412bdff8a58343a144893daa68ce2437aa61aa259f8ba37143cd65954733a",
    "signature": "0x6a5274d09ef0d6904e2047d3f625dc22ddfe8189d091b16917b4be3ff5fab66a56278c713c29906f81638f3992feac745cf657968666b711f3e3d020684eae2e1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}