{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x38fe1d7ab5a1f50cb6310d957a7e97c705342454e030bee8b569328ba432972f",
    "signature": "0x8c8b84f09704966eff4d4e9eb8db977a4f0677a558e90e783ee257d35b348243567ab772be13f4c69b2ae2110cfd9dfec42b4635b1a1e349723b5479c29564c61b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}