Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'abdb4942b54e2093920a9fd3f72472e217b4a82bd0c14ae30185a3f8581da093' 
  AND token = 'zZQbLB8GVptGCkHnIyaoGQ/qALBx6FiHQgaXzgdfgc0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00060

JSON explain

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