{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358998259",
    "entityType": "User",
    "nonce": "0xeb43d0b60efa689d8d772db7fc650e2931d2560353ed7466a60a22d1adf423db",
    "signature": "0xe5b175afa455d717627e2f5a301f43bfc05f4d70a63c32836f2cf6ed9edc30c943b6607397a982e1e9393dccc77a1ccb36b4bb35b02297592bfbfa0de508b3091b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}