{
  "manageEntity": {
    "action": "Repost",
    "entityId": "300609780",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xd1b44c7b9481290e735d89668768a934f58d28fb4e33bbeaeacc981c4b70c675",
    "signature": "0xea4a7fd4c33aebeb8f9f69016116d01edfea9bbbd09c3e69c4ed89af960b98140238226f45a46a0e2f2b9d896b235fa31ae59774e9dcd4b857b1993c82bf5f3e1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}