Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ee30d580a36e52f6f06942b2ea6af7abfdeaf20448ea49e77e3dcae4431a6161' 
  AND token = '0p4H3jvGyWvWAAEt/YevsdoyE6xmRUSKh9xVs68msEk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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