Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '48a3346103a9d1af771ae451081a60f6999a95bb4e1f14f4cc59d37450f2438f' 
  AND token = 'eN5Liosm+GE67qPAhVDAEAA+HFxaDUEa0cS4zYRcUpU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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