Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5ceeb2625e0cc7c62bda7b3fe44a5a2116229df179692c81de792f2ad7282736' 
  AND token = 'l122Oyvb6g3qKhk21jDkNQyqG5Px13C0Ztou1ZE/pN8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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