Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '108ba9dc0b6e8f2f5c97564a59fa27c785efd66fe522b794a064955fe00cadb9' 
  AND token = '2AAEFB4tQU34+xBSn5Me6Uo6tImfUCtsS/L2bGaSZz4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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