SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '64606a829cbef9c636481dcd486b344a4d3699986f5b600b71bb49b5dd1be2fd' 
  AND token = 'CuoHEdUYzyCO5ZnZl/K4VWjUl3UmSLryOIoTVo7PY+A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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