Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a073b6e474d06acf13f09ae9c7bb9b3e076ffaa8063ca7ffb49b034b932b0d25' 
  AND token = 's2Z5oC4ikCtosqhOCbDAhAO972Ds0HG5Uq4rxCHE9D0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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