SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05bf787f4770685b8d99670015666c161efe06a074c66c151c599ecb9ffd515d' 
  AND token = 'C+vVqK9FjozgYgG3mDhTDMvY1kcAMowR4b2+7GjE2X0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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