{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "673903161",
    "entityType": "User",
    "nonce": "0x9e00d485b19b4245ec44c69d3067beada86e5ce65e324e8b5f6a3b0b5a4126d7",
    "signature": "0x411514ef47fd8a67706d156b8d421b62d2bc68a513d277a839c870efe2b393993df90496d7ee5fad98a98f376fe8e35d30b6db3cedc28056ae46f3c49ec64b2b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}