Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1122dc89432a1720450eac61c9b76784852217720d482e4baeb3fa75cec243fc' 
  AND token = '/RnaCFO2K/FXDlgYhB6Aaol3KKPXSqtMWYWr5h2mWYc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}