Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '074dacd292b5cc2b8a87fa65858d984bba30e3d4e9f2f6f47b24b86d8c799076' 
  AND token = '7x2FsTZFnqXOZFbtZ40c3n5OVvtzaKdkE+CHWPZrit0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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