Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa885267abf8de4221f8280d011e14274d903e5b000f2b5070cf667eeb0c1a4a' 
  AND token = 'aRal/PLkapGBNV+R460P8zU2CqRPQ0B9TB8LGrCgVaA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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