Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9b9565bdc8565fcd8061e5efacc882ae22a782f21816477a4fd975b5a9ece509' 
  AND token = 'VRFstLkn96OV3SV1Mk/R+JNe0L1jQqMsddOzicMTS8g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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