{
  "manageEntity": {
    "action": "Repost",
    "entityId": "1559776819",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x878ba4cc7fa876d7e0022f75921cc4e4c3a4885bda50596e93844790d0ab49d4",
    "signature": "0xd0e8c34b88810c4e60de123539191c5db5571096620936327caae55a231de8b866d5e401555b25f65db2423dfc968eed0209b802a1874cc63cc552ad802e89b41b",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}