Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32365524deeb915ef4ce360bee64796de2cffc3836a7663f4a0a9bb3eff5f871' 
  AND token = 'RTejeL/7lwfyKWLJmdbSSb4+4z1vZivgjJFqrIrwXjA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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