Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d4ad72c94d5f6bd4eeaba014dd0e1a41d8ea102166429edc8503387bbe5d022' 
  AND token = 'DwJvjAwRgnPr50QWsoBCKQ+vOXJJipNj4Kue4v9irzk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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