{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x06194624020741e4d078df1ab96729d6c19b0eb2e2bf34bda37bbf4f0fc8cd49",
    "signature": "0xb4cdbcb656157b2f891489ac15daca0b408f8ed25240d7986e0aef89349c95b64b46c552a8c7df20b740d453b968a1adb001034ec05aca7d2df0d67e200233591b",
    "signer": "0x18eCB97d7397095705C527E23EfB6f7A2dC1b185",
    "userId": "37788393"
  }
}