Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'bdd267bc60684b5484a7e5039efc722cfb8456b7c25897c8c883ff11a4bf592b' 
  AND token = '3Vry55UzHVpwDz/fPln8ED4F28oaq6H49AG5KSmtX4E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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