Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5c4e01d42e53d89d9edb8b287d7fd23ce9c4b50c0bf36150c798374deb3c389b' 
  AND token = '62UBXmdoIrXMAvMoNCuD2wsr+8wdxQZ5VS6moG5mA5o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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