{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1504577420",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x9a25e278672869456d8ba15e884e74eabc1ed4bf2905f67e646d54b283a99c3a",
    "signature": "0xb9cdfe827b295bb6499e61cddb1181fcf7d0326a4daec548b5bcf4de27975c7b395a1b1b4640ccd919f34e1e5f12497fa854b3411ab36b24fbbcc9c03ce4f3f11c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}