Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f24ccd29e5a1498af0fc730a11af7671e756af83036e2a89c92c652474a3e42a' 
  AND token = 'dHZEuluEkhpu/GUPEOKcjuAZHnTVDyyOYimUCLMdv4A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00076

JSON explain

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