Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'b955c9672a43473ed3f1e1cbd358fb4154ad249f3267f951aaa953c4fdf017e3' 
  AND token = 'ilp7lw8rkeMo1AEfrd6xKZD+t2ewhCDAHsIKjXa71ls=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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