Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64ed94a438c921b58dad10f409896cc3016ac2e58d5254c0be71e654cd6321e2' 
  AND token = 'YBrpnzRTW6fAiAeUTjnu/FKXO40uoOuZbE+CDsPvM+I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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