Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '01dbfed45b6c983a92e50a1b5216966b1b5f16e942069ad9a5cf9d62f95e1d63' 
  AND token = 'rmAzBIScjYwmA9BFZk0p1okBCn0hwVvYwAO1I90h7Uk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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