{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521386606",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x64a52e39ea5cf93bd376d2d56bd925e20e9904918bab54ccfd94319ce1e2a353",
    "signature": "0x5e90b0326d54ef2f8c5566fc9b9dbc6fec41a06490698505b090a509d46bd3fb6addadb55a89ba6ee61e24a381dd1b314a158680934ae5db11fd84b4bd1b77ef1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}