Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '228c4cc1d0bdd2c46b85d712544395c14fe42d0be213afb238b80fd38be5455a' 
  AND token = 'ezRaJl6pREtmx9fvQ16mnIFPwwYOxnOZ1U8sjczLZa4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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