Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '220050ecd0332e487fb06adf30d4533a5f1761855e399e67b3471a200a384054' 
  AND token = 'EWOIDlRKtUKaT6wOU/qX2QtDOK6cQ09OZe02NIr2Ztc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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