Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1326ba9608a07f7b3e58d2edb5cff4bfaa96520ca47a9523deb64c912870a27e' 
  AND token = 'qne1a1tn64gCHEEaviX5ggFEi3XfuPRiTnjccrLO24A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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