Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9282699b173e987f73a308151d45f19edf27750a53a76b8549ee78313a0f8002' 
  AND token = 'CO0sHB5q1D7T7wgNpYRH1x4QeTM3Dz6k/09td12Qe1M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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