{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf162e0c2c9b85fcaa7dd65200d8d126751dd84280c8e0568ecd1772b7936255",
    "signature": "0xbd3fc8043ad8dd2283c717eb8a6d88f9444eb04ac33596f1147fbe33dcfdc301245ec497cca98a673be793df09b2fef8f0a05fe01097fcb55240f862bc564d781b",
    "signer": "0x668f0622d58FB2F52262C63A1870145bE0aF8761",
    "userId": "808689761"
  }
}