Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80c7b33358c338fa6a653012a9c017c72ad3622c7c4047ca87bf6ad9db05a130' 
  AND token = 'Kqj3xSLEXSH5AxOOycK41/pVrZG6H3HSAR11L4Iou04=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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