SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6395a69e3f7d8e32163bc2fa3961b2cb6651baa019408077afbb909472acf13e' 
  AND token = 'JHmAexgzHKV/gFFMGExTVCtH0S4XCyf8lGg+Bx0r3hQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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