Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ffed12c60a54e34fe03ab78fdddfdac6b960ef1a4614273b60e82d89f2cd570b' 
  AND token = '/6/UytA/LSQioQfMlsmOrsJdukQPPbGOzCo4ubUJzmo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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