Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01c99b005134d5f2088232cfdd28d0b4f41371196c529cf8365f93932739cbf2' 
  AND token = 'feQxf2y2yIW3+3r6znTc7B564hcrU/P6dzKbSD4O2MQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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