Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd01c70dd38642bb924c3ed572afe8cd312e49023252054fb39aba77166cd6633' 
  AND token = 'Ygku6KoV444GU7dGO68e/52ltu4+J1XGPzGqiDBdDqA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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