Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cdc05052610f76420d392b6493b1d80ecb65f0ae18662d02b310860761fae379' 
  AND token = '+HbOIjvET8CtW7GUO3ZIxA2putJSbqkktn899Tnngw8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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