Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0607ecf3885b005bd16c67d6a22000ff495c4541aca05e54f80b7559cba2a836' 
  AND token = 'YvredF3k8k5gjM1SOSbXMpzNynjYdLrnifCAfjq1psw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}