Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0fa6da6be4784569e5494a3da047dd9c024c43166f6b7ad53c25123d43e916b6' 
  AND token = 'aRhCp3m62iIt1lOrANf4gXbMm5yWQPleL7HQHahOoa4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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