Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd80ada82decf57b7e9924dff334f7a645c263072ef147c7b8d44413b2ddb2749' 
  AND token = 'U8KZZNjTyarN1d6R0mpjxOhBmFT0lARi1c7LfMYV6dc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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