{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "623999156",
    "entityType": "User",
    "nonce": "0x7cd1cc79345ec184e6b9cf8f200f7fdebd6c1fa706cdfe1aca47633f7027ee80",
    "signature": "0x2b6ee5c97f6f5c916a8dcc09def19c29df9720b0658477cbe9bd3d8edbf710087ad2e92877866a33a3de1725923ef3389c8a722e39807d50586e3d9f00212cca1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}