Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32f11e67ff459b49c7e441fa529ae6f139eb639b27493fcda5ac359807ae6c1f' 
  AND token = 'HGw55oAIlFL8wStNffP2PqD4+uGme93L9yA6oSb3LTY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}