Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '633fa5046c0cb54b0043103ea983778f7d1a3a6b70aec08a9589206c385f04e2' 
  AND token = 'QcZ1KXp4qVb43V/pgjK9Q6mg54NpeYO8J+20asDFUYI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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