{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621508",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xba235a909047a631988376f5b960ec183d5fd97f5a5992d4c514a3971975bac3",
    "signature": "0x9f9675ef84d56ba6dd5dbc095cf393e1c17c3b416d5f76ac951ef05ca2c721e47f1edffae49352f2bf5f04bde6d708ffd24fe02baac6fd5035e4bf030b36954e1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}