Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f07c439534e06f6b4cf8f980dcc1280d422d4e8cb528eec989ef41ea1d3abc2d' 
  AND token = '0yXio8ZgCrld+nw97a6n2uv1PfH7eipM0y2eiOYhGFU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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