Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a49f902bb834d3d1eb950bc8fa381cbaaa7d03f63c883d1cdfcac794e8598319' 
  AND token = '+y59LV0gEZxSa/96PGpIknOe9CuzkFvJXDV9s7nZLLk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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