Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '10bbee086ef8032e979da39f1218b97f322681a5f8a1f8b503dbee8ce4b2f3a5' 
  AND token = 'jPy2HzRHr38bb0ZXzCJRbh3fHYGpYMvH1isjzslAkZk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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