Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08e8419ccc999ce5adf47b04ef28aea4c3ac61c0ca1355241368b2cc51404e17' 
  AND token = 'F79JX6OoEmhkqC6OPuXcJvm8R6pTBuIgg/Iwl3jEtlI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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