Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '207bc78900d998b2c0c7ddfde9acb61f33417f7adc923a712e957d37d1ba1bf0' 
  AND token = 'f8C/QYsVIb/CERu8StRpNW7aOSKFlb7JWK+CD9zrbtI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00065

JSON explain

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