Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '003062baace4801412c93d2d33f5ddd3cb344a468b6edf9d94e62890b13b7046' 
  AND token = 'ApHJre8+H9Xak/8e+60b9di5y+DuOdgb7rymXzQJvYQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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