{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1539581950",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x76545d9cbb5d9a6a6946c7f0ed02630f1ec34386966cd092b5d413c5b5e4fc76",
    "signature": "0xe5ed1396efa14c70770995fdc32c17942a4e9dea29c53fd0ea897b9fe1e48bd323bbc26d595ee261ee67188c16991e528cbdf340ecb7fc72c98d68d1fd4501991c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}