Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '813469ad0d710cfb5af4d61b39533b8dfe514f298de76c66a112ab1c3d9ce3ab' 
  AND token = 'kEOmTAOyC/gj+arfDnpA2MAlx7c2Ctm6oT8TfJepPb0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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