Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59c4683a1bf51bc22abc79e8e766038d493543b0a87b6746020bf5558ba8f78e' 
  AND token = 'cGVNhlsGfo9o4Ok1TD3ZCYDntZcla/eAodHEMeVrIYw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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