Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '211ae5572017d5b4ba4817b494a2b0385820a96d784771cd4279cdfb47f08138' 
  AND token = 'vWQ2yAXLdnSZWVyMOqfB/ZWo4evVDZSE3aVtE0MV/5k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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