Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '20009016135dcf0fe12957a36112050fc0ef7fb6d22da6bb3a66d68e6d0c7efe' 
  AND token = 'K4GMR5JpjqatjZBd5ScbSunv2QDNT7NmI7AfEcKRO+I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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