Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '031717446ee10181d65623160d87ce8f1188a2c649bdf4fa1a73ae7ad6e0d31e' 
  AND token = 'GU/05OkLqobhYbLYgNXukwu6w9zeo77hamvi+ZzUapI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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