Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0759c9b8cea91184f9fbe231759ffd87ac92d39580b3889b925e91a788289d1e' 
  AND token = 'M0OvCCjZxT4ugy5L43/tKd3J34SM29n+YIawtUHDa4I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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