{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4452",
    "entityType": "User",
    "nonce": "0x9a2a861c2770fc00670fc17de0af59904c6d599b2486c51ca7111d25ac63cdda",
    "signature": "0x129ce1dd52338c88fb8bf5127529e6a56c32bd42108dad2a3df4a919d038fe42678394340060993cd3b679971885208e7f17d939c81b63f5072f1308ff6236a21c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}