Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '095ec0d30439d9401fe382bef38c7e0d0f7bbf9d74cf5ca8cba9e32de73a8afc' 
  AND token = '5Qj058wy7K1K3mNoCUv9PeP/DwqBaCbQtTRN59vYMPk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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