Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b0913d24c583efb851297efe588c4bf9b2a67322d7117169e41f16519f76dee7' 
  AND token = 'xJofE7dM8Q+oOK3KCxZhuOc5Et9AVkFhO83xgJhr6ec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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