Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ecbb7893a170fc67d4a75e0863a2bcce469e1239d41960abbf184c5f008af0f' 
  AND token = 'YqRK5OKTsECwLiqX2Mc+nPL4e9A17kX78VkzKsnwyMc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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