{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "719574078",
    "entityType": "User",
    "nonce": "0x5818e227d5759fe4263e8fc4f764cd59104dba9fe36d11de530da8859342f1e5",
    "signature": "0xb3905d4fa386709414d04c317e00a60a25af4880f77aee79777a234aa88d1ed5638ec5f6cbfc6482822f2d2ea4564b5969fa386fcc5e1ceb84d290d40da42d2c1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}