Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '097b3551acb0d5aba14c82f0ef177f689a8a77925bc920505567ba79e9a9d7ee' 
  AND token = '7zJkT4ginDrloATkeJludXze7olHfnf4aMrKxEhuJng=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00060

JSON explain

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