Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '66920eb27e6b0dc3bc396c9105dfd04bfe0a1e91a1661af464aefd2ae1646b63' 
  AND token = '5fHmZAQVNvs/GO5cyyZGW8BSzOJ78snhXLr9XgEGziE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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