Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04426f1c33007655e62841e2cf6eee7b1c28da5232581ca1afdce877be368c1d' 
  AND token = 'C9GRY+nGjcHUDn2N+KFTZXPGKAmmcS3zhZ0ixIofm0U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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