Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '097a41834d57bc59e585574099a1d499cf1eabfcc33302e63b195f4fc52d439a' 
  AND token = 'DioTpOE2BdfOBHha9Tp7BSHXLCpfG6K1I7NcODwV87w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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