Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25a705084af90ea2d6b5eedab070ad90fe6571b12cc8286c343767a8b833063f' 
  AND token = 'yBNvscm5BnRaRCJOKU35yzrfjh6NbH5KWawQYMvoqEE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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