{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x63ece52027f794320826e6d24e884c2049d91ae84cfba57d54daef050a5a3f98",
    "signature": "0x478343575908dc93370524dfc6c17f1d41a84ca6015c594a5328bdd881190e5c2a5eced92406913eeaa7bea79879faa62166819460a37bfc47a719781ffa65c91b",
    "signer": "0xC15685282b5cF6e70cd43c8E59975d6599a5975E",
    "userId": "838826253"
  }
}