Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72e8e98a1daffb482619d6a5e4e8f1ecf489e8c78757260fe9ea860c6c9bfa8b' 
  AND token = '0YZY10j27OA64s5u2XkgSHyqTypmCNdaqyBOpmEkeCY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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