Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '039ef6a19eb2a6489a0573569c23519cb87ddc930ed2baeb7d386b17830e110c' 
  AND token = 'aNGE7BL8zAFXSX3zIj0yNKnCsGvG7n6RC9qvWnNeprI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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