Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a8282395a8f479319b1e9eb917cb4cec165e57cc82212a309cf4b6587e979f5f' 
  AND token = 'uuFkeht/p4LL+I009tioJjHKIQcQasHkpr1D3jDrhT0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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