Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '407a994fe7505e4538c57b466fa968c47470cb3bf42fa2c334dd2e7610af0331' 
  AND token = 'GZv7AYqRLNy0wO+QY37/hLaonC+StD4B0Res+H7V9sw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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