Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '628170d0a5b3ee1baa634487493530de168bc200b7374de3c0e0fc6702db26ad' 
  AND token = 'aRbkL6RCPOylQQOjEWYAXD8gQ+rIdjyqdSJxxDc07yA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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