Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a13bb75945c08e6d89dd34dae7707b274dea5b9cc5be7116ab00945f1f0aba1e' 
  AND token = 'buwkrptCwOChp07osR8iEBVbYIO7dFigannHQKWS8Pc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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