Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '79f33a2e44800238d423758cc55331745602cb8e75c6038ae870ef72b194f5e8' 
  AND token = 'Y5Mnvp/5csE5FfVq/vJ59kO434g52xpRrK/UcRNATeM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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