{
  "manageEntity": {
    "action": "Repost",
    "entityId": "604151",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x155335245afc3c850202a3aa71c27400480e0e42818c9a22a3849dec6d259b7c",
    "signature": "0x448e93b48be5d5d7544b1c22dd9f78fd452bb82258041fa50868dc7040a179d23bde8ccad7aa4215ab37ca7820128b9e3b4c02539e01c4c8114738bc6fe39c3e1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}