Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58cd216dc3888c8e3d298eefff575e889acff39eced9eaf2ce85e216fd903473' 
  AND token = 'IKg7WFopbF+C5c4pqLXDuzqH0gy5PDDrJ/y92Jh7Ciw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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