Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98f614ca7a2e971b7005ebf6f3c0efa210206aba4d802e5ad29ea4ac6071ceec' 
  AND token = 'kJqv3O6inuOPILVYtFtmS8EcI8+aZ14vF+rfkdt1nHY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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