Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e90be6205e892e3bceab11f527c8ddd0aa84595eb7a7455ca53256bb1edf433' 
  AND token = 'mmPs/HKogdyxSfaugBcDl9f2Q6KFc+D00QV3m3d2UrU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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