Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '114df86ed59960bd73ec037b6b17cacd89d1d37d9749afe5e665698359e9502e' 
  AND token = 'A/WD9jNSUBNaKjtkIyrH+Yxku8QuavJ5llMu7ej7gEU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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