{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "818976650",
    "entityType": "User",
    "nonce": "0x2cc8f689f1838046fd1da21cf7351a6e28e67f89ca65375069ec645d9e9bab5c",
    "signature": "0x35a70121e8abe3327a4bca84f78bc3dc417b62706889c78e35585095980205e323f35180b2e8908132cfac16391934b2435785aca54c6133cca585709a1ce9a51b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}