{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "816471698",
    "entityType": "User",
    "nonce": "0x4dd29c1c7644a08da2dc4c84bb0a2372aff8f5502febeaef682a79c490755554",
    "signature": "0x47206d9d47109c601dee64c1cf73c966d8551f812e71e79412fd9072bb85d0c30c9bbfc736296bfdfb395602aaef65fc3373c02641b7839c8c2171b8f8f4a36a1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}