Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'db581bdaf0f1ea566381f1e2ba14cbd585e558eafa2a20ceda6b2e37813f96ea' 
  AND token = '8prhgbdZ5iAc0bQiVMaIHB5V0dyuhqZhztNgCMwg9eM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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