Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '882056f8a9162b2aee2c7fef66ccc1592aa990d35fe80a9de36da954b1102b5f' 
  AND token = 'wb0dfoMsTnJkbTCm6e64AFR3MS90FRWgSxIOSoVRD4A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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