Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '65e55a091b893c91f128fa361d93d17c981d14c8159e58f7ad30eefbdf3e19c2' 
  AND token = 'dsBFct9mOpCSRVCH1lcRii4J5mQM3NnQZuWxhNXoMYQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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