Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3b4460cd6e9857fa7c89da71a82aa6583be227d3a434d8e77916121d8bc90f19' 
  AND token = '8EgLgcuOnJiAcQ9WpyPVxlvyR+j3M8JRi4awiTAkMjE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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