{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908311878",
    "entityType": "User",
    "nonce": "0x6173394850fa333bb44146e917e93ff8d8485cf57895b6038c615386b3e8da76",
    "signature": "0x6fae1d2bf96deac8bb46dc71427df332d93ca7171c3016834fcab1d8455e57885224a15d59c14a307091442d60cef050690d6720efd26b8b14c91011f468e0f91c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}