Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4a65e43ec9660f59b5d462bdadef1f126a0ee1717409d47c59eff46ed21ea461' 
  AND token = 'yLpEI4YZ1FOtbyNjMDDV8XhhHruRRT0uloYzk4qxrGs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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