SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '599a187852dde437c6c65fc5382e355361f2633209aba94130a9cd7ab26c3662' 
  AND token = 'TvIBZX/Ga+pRCrVbeRuObkPAYVdKzu+JzAt7Hc+BTik=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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