{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143302",
    "entityType": "User",
    "nonce": "0x398af96cc47db3a41af58f3953871feb2abd1eb76f3f04e66e0d5d9df7f9a2bc",
    "signature": "0xe2619118ba5555f3220a83735c805e4354050c2405d55a9901874f1270f1fa3c74e54ceebe9c9d24f2533346da583761146b8cd33ee1f07c833d9e6b3b8865a01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}