Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c64a7b5b37fad6498af3ff49ddc3d9596856d030845ae230c8704c2648826fcc' 
  AND token = 'tYDvNieZ4d0KpnIke77jh47A0Q/u6uAvQkgkxHrvwjg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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