Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9eee17d015c483bcebc08b0da24dbbb93e6bf2a09049734bb90c0fd68e5af6f8' 
  AND token = 'LE3AW9uZHruE7m3THQGYgnZnKS2bPQvUFsENMzf/0DQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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