Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'be77c573dcb2d384cc3b8801200fe12ecacf72c58cce0c19a5f82fce7e5b6ce0' 
  AND token = 'HGPF0BVcs83DTL/zHBxQczZfmooOZOfl5p+8WgXzCA8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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