{
  "manageEntity": {
    "action": "Repost",
    "entityId": "721864757",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x0217ce43673297d4af2fb2aca1bb2ddb16886de53c1e88060efad7077a350211",
    "signature": "0xe0b6c01bc948b17121cffc74f7f671e5e06936a987ffe0a11f80532d77e1c56675817e09d1b403c73ed252cbe43a860e4e1a9a925fadb0b49e5a4c6fb8e6745e1b",
    "signer": "0x767f09338Ac6CE8645c0a76a17a560429b582132",
    "userId": "520958130"
  }
}