Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4dde01d31c59e072401e988c2ddea05bc0da9aec2511a66c2a71889ed3cc9cca' 
  AND token = 'q3dF8SIXSy0nCodRKsAxZAF2bZDHhkz+5K/vP5yjUAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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