Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '969f57a2c38c9018e99aa8037392bdc23917ce6fa463af3acd45f2e66cb6c008' 
  AND token = 'bkPXBrGn+qDfKrHsmz8sfuirFz3bOh69vxNnbgyi0e4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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