Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4847d10631376948b36769cd37c66c7f96397431edc0cc49273d1480cbaecdf8' 
  AND token = 'FxsCag38Ia5nJmxZvdTq5SabuMzvSDbVOoe4dsasmdY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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