Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '909c3a1767345189d37036ff03d5ffff5bd6526887bd301ae71528a913064695' 
  AND token = 'jZEYFIE3s/vriVzxSiQMvksQEq3l1AkBRn2NQ48GurE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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