Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '616a62e37d137ad3b9101585b5237a3d113a97deac99a1b20250afadac4a132f' 
  AND token = 'Hi5CgHoFWJCUM11Cnd6m6VWusVOUS5yWkueNm7lg9UQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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