{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x133a4f68dca357baa6a1ea9b03b8139fad0534d2b7cb1dd4fed38a1257135292",
    "signature": "0x2427d717ca3fba8ddff60a2fda6f169cea98589832cad758a7cb417a567017bd0a9eabc6fb91708fbe6ad42c4295cce431ee02a18f2b2e5db87a72deb91fb2801b",
    "signer": "0xDdDe06F0AE1A8b5AE8022E715Ab6575F96C3C7aA",
    "userId": "63571897"
  }
}