{
  "manageEntity": {
    "action": "Repost",
    "entityId": "399818006",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x4f2b85c31ad315e4f1e71e21f512fa6c5934a4b20369b132a106b8a5fcc5655c",
    "signature": "0x3be8ed025faa6b13f36d5a368655ac8846d92f39495d921d59597399e53af9c800d2d572b7e629b6007bf38ef6528e775d10dbce9423131fd23c464ef33b122e1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}