Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5aee729185f92d74bf26d5a1e393cccb2cf14f6f8168473c15fe35eeabbb32ef' 
  AND token = '0KYB+hBWWlGTUQbU8cQNJFJV4NM3eH0zyPkqMiR5ICU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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