Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5229207ebb7203f26694ad212694b8ee49a397897bdf6c38bdee8cc67c6c428e' 
  AND token = 'XyDC8pXq6wbspNCQQrtAabu40T7qfGFHJRUr2K2V8Ms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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