{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621756319",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x85b8de910f9f46ebf9189f3953c3e9284389387eeaa728beb16842e4bde86577",
    "signature": "0x3a5811d06d1401df9d8958330a50534e5fd5a1f79cdd63a0d0825dc1188a28bc344e16c09a975a092ef0a5f595536fed156bd29c7f4e27cee380b32fc84eb8011c",
    "signer": "0xa8E11aa224d2579f5cbdb912866bCE84Eb10f9dD",
    "userId": "951616224"
  }
}