Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a953084e30748cb03d9ce8b4af4c29a4f8ca55ad9389d668b1de5d6d62034a22' 
  AND token = 'NhHP6MSkmOgOT3PviDh+VSRHkoW2doeezC1U0pBn4Y8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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