{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "622825008",
    "entityType": "User",
    "nonce": "0x3e7b166f68fb429cd71527b733b4f78d29e8f686bab8735252c58095e2911cf9",
    "signature": "0xcf2a113a331dd88db665bc7386d5cbfbe51919c7d7f8f91bfd233243b53426b938f8887bb117ba28cf83d1a71f3a969c4fde4a6772b1f6bce9bf15b5b54cd4691b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}