{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1464698568",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9d4c2f76a7aad6a920e31fa0501ce8ebe410f467c3bc605f5a59b78e030de2ea",
    "signature": "0xd21f62dd3323c2e699b6c68a5e38a153ff3829ec97a56d0d74090cb9e01a08317b68121931aea68a529297d27f78407b15aa7c80d95eaed34e5d2ce9230cae641c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}