Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '405986da2b56e25cf2ce6d08c852923d319c93df00b3582ef15b3d071766a7b3' 
  AND token = 'XFdRdnoqD9O9bxkFK6lUMOmGhRniC7Xxic6pJ1KFJcA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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