{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672251661",
    "entityType": "User",
    "nonce": "0x1165ece2f7cf6b8534906d7e557395a84e1151c6d4111ff79d93c52dcbad7d09",
    "signature": "0xbce8d3946c60539000a26ca233be07657493ff289f300164032d4a7e1cb85af923a5cd0bbf5541555d24c2279f60ee2e3735126922657ae47994ccf6f4ba2dc41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}