Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0424e06345fbadd61eeb3bf611e188d3802744e8df51e3acba076cbf553c1c6c' 
  AND token = 'SQmefNLh1WhNpBApLL70qqHwsqt4dfDx8Q3dAA8m6QM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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