Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1757206b5b542eaace908385c3f157ac6d43da0a04621ec61501a32acace3d4b' 
  AND token = 'WtOIbT2n4UEWPvbpeKZJYF/Jt7dGptNYSDfxrfkXHTw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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