Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32f3df13c524399a5be368e1ca7098b54ccb88e4cb0f661ba59a682be068e533' 
  AND token = 'OPS/VhUZPIQaVXefp0rLTdUNso7BVrqlyqSE7x87Wv4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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