Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01ebfad5383f1a0238617bbabddf5c3a2e445251d412438deae85fa2ee6bf0d6' 
  AND token = 'qvDFK9B+LoLBDmJNn0GQwz9iRw2l6J/i5Er5XopAX18=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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