Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77bab329477a10b844f105e831f95dc5c195589a7ac9f83940f941b8c9c49e68' 
  AND token = 'Ou8IsWCwqNksKA+XXg7vpEFcrnkMJ0brTu+2BNbgPz0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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