{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399478617",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8f3fe74cee2aa8dede9ce725f209a4a2e1e2cd183ce271d3225b1b396284f7d4",
    "signature": "0x2fb7328766daf5c60dfaf2adcbce381dc4cf9ff55b3ef1ed57e9590b730ec02d509fae7abca3018338206d399db005679f1f16bb16b2a5b53e783d7c00d58e571b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}