Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a1018bf62175437fc960d12ba11f176afce684a4b3cff24d48059609d57388b' 
  AND token = 'zOPCeRPab8k4DmEaXz6MMGicW1hCtetzUTuIJlaPyzA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}