Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bfbba4371f4b1984dc22e937cba5b896a016526a5f3f5756354f17cd5a66d5b2' 
  AND token = 'TNVOJ0dqW813UR/o4tZCsoxaViGjlQCcforyiLAMu7Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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