{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x8de56db06099bf02a502842d102c233fd2457a69a85749f430261ebc06b10c0f",
    "signature": "0x8954dc5e1e8e24d04b1190962f172e705486b18d71da1d10513c1fae0ef0ab2605f474079599fce003a8436de29514070d75c0f18c2ca7a873608512fdc796ae1c",
    "signer": "0x7e1F8Ad5AC71ff7ECFaaB54D7C2Ca8C373DeD528",
    "userId": "674981811"
  }
}