Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4b903fdf4d6fb998d89df0bcfbe4df272b49165daea932f49ea66835c7ea5fd3' 
  AND token = 'M0JViSrWTrJFEIx70yGVFI608X6QqJqE5XPXGuEqqfc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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