Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69bcdca0e3744140a6e92bb992e7baaf5d6ba20fad5590106773f8a07f84357e' 
  AND token = 'fyB8Xn0NasFM8FtIWp15e5bVo3Z+Et81jDc1lLrwy1A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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