{
  "manageEntity": {
    "action": "Repost",
    "entityId": "121328",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4892b2fa165f66ba909b507400fa20aaff1cab42f6f3c8215c1ba602e46813d1",
    "signature": "0x1b9adff20dc094ac67c960132d0c56f3fd5d1e860c5e4701d54e8cf0507ec20e4328ffa81bfadb6d67193d627788f03a4269ee3c7bd15aed246242cdb0075c791c",
    "signer": "0x15B9643abE09bd37C52a5BD1dCF938B05b06cBFB",
    "userId": "370091516"
  }
}