Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8919bfcae6dd92aba294c5f4278df6c9398779f1dc82f75d5f5962da89bf773b' 
  AND token = 'weiyvXOlZuoogbjs0t8Y49VQHUNtH8tYVx25wYzXNpE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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