{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621662609",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x8782b040ef75f9171edf4750ca30ec7ddb2f47db8303189d9edf94c55182d94f",
    "signature": "0x14f40356c435037266e83b5f1e39774e33a9d695af94b7149c4aaddfaf0980e1226639eaaef5d4a8500be7365983d6d7c9bcbb22b30215fb66c719c9bbc203791b",
    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
    "userId": "889450527"
  }
}