Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '519cec76562bf57e9a25c9bb7f99abc17824dec7697ef53af3c3f7f45423ffaa' 
  AND token = 'b0Wr0yXsZEqSi55F0qYlaR5Ivq5hgiNkrjpKPPoYeAQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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