Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59a67529a4f9867eb8564604c847cc7874650e4a9da91bff033a932a1c635520' 
  AND token = 'HiIj+nwgg15s+GOLcrqNqfoCGzKXGuqtcoAp9Garko4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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