Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d682289d056c46132c03621c73d20a62736a01d5d1e7058dfb32a2315bac3ae' 
  AND token = 'Qjupj9K6SeheeWo+X+vdDKZupzuZ8jAmnLwx6gQlGhE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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