Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '99aaa490ab16eedb28411ce9e16ec0a1589ab33cece0fa7367a410d9d773e768' 
  AND token = 'qKQVTXDPNjw0+MU7eIrjrtE/dR9Uv9l6rXRBwq0Dwdw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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