Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd417873404eb9d35d2a7a4e244c72d89df7e4b1367263d8c3155807f2fc113ff' 
  AND token = 'dxA99xNFx1L0zM/vZT9MV7fh4Mgtifp447DNW67w46w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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