Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd3a45c94d6cb70986eda56ae4e47e05cb50507e55af0e5474a7cdcfb49de62ac' 
  AND token = 'Zy26g7X7zplOBjtGQX50tTBHO47VDt8YrfsFXRaaNkk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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