{
  "manageEntity": {
    "action": "Repost",
    "entityId": "518505198",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x5e3c499d71370143e12f93f592458a48e2ac7521d5418af0f379b8b089b0ea1c",
    "signature": "0xb3c5450be0834d60d4dfa68d9edf3b500fdc7cdb8fabf47ba08f83bee5c595fc3d8f5f7749ac60c80fb35b1ae3050be3b242b0c6db8822e40acf5c06cd2d7c7b1b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}